'93 JGC 318 Engine Ping Problem
11-13-2005, 04:07 PM
#11
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
On Sun, 13 Nov 2005 12:40:03 -0600, "DougW"
<post.replies@invalid.address> wrote:
>---- did pass the time by typing:
>> I have a '93 JGC with the 318 V-8 engine. Having a lot of trouble
>> with detonation on hills. Using 87 octane gas, and driving at
>> altitudes over 5,000 feet. Other than the timing being off (don't
>> think so) what else causes detonation? How about the fuel injectors
>> needing cleaning? 95,000 miles.
>
>Generally a lean mixture or hot spot.
>
>Your describing "detonation under load" which is usually fuel related.
>so my guess is clogged fuel filter, low fuel pressure/flow, or too
>low of an octane/bad gas, and sometimes sparkplugs if your running to
>high of a heat range or your picking up crossfire. How old is your filter?
>
>Crapoline: http://revbeergoggles.com/badgas/ Also what you can get
>out of a very old filter. http://www.revbeergoggles.com/temp/fuelfilter.jpg
I buy all my gas from Costco, and never have any problem with our
other car. They get gas delivery almost every day, so I know it is
fresh. Fuel filter older than I thought. Major tune was in 1999 at
64,000 miles. Looks like I am due.
<post.replies@invalid.address> wrote:
>---- did pass the time by typing:
>> I have a '93 JGC with the 318 V-8 engine. Having a lot of trouble
>> with detonation on hills. Using 87 octane gas, and driving at
>> altitudes over 5,000 feet. Other than the timing being off (don't
>> think so) what else causes detonation? How about the fuel injectors
>> needing cleaning? 95,000 miles.
>
>Generally a lean mixture or hot spot.
>
>Your describing "detonation under load" which is usually fuel related.
>so my guess is clogged fuel filter, low fuel pressure/flow, or too
>low of an octane/bad gas, and sometimes sparkplugs if your running to
>high of a heat range or your picking up crossfire. How old is your filter?
>
>Crapoline: http://revbeergoggles.com/badgas/ Also what you can get
>out of a very old filter. http://www.revbeergoggles.com/temp/fuelfilter.jpg
I buy all my gas from Costco, and never have any problem with our
other car. They get gas delivery almost every day, so I know it is
fresh. Fuel filter older than I thought. Major tune was in 1999 at
64,000 miles. Looks like I am due.
11-13-2005, 04:07 PM
#12
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
On Sun, 13 Nov 2005 12:40:03 -0600, "DougW"
<post.replies@invalid.address> wrote:
>---- did pass the time by typing:
>> I have a '93 JGC with the 318 V-8 engine. Having a lot of trouble
>> with detonation on hills. Using 87 octane gas, and driving at
>> altitudes over 5,000 feet. Other than the timing being off (don't
>> think so) what else causes detonation? How about the fuel injectors
>> needing cleaning? 95,000 miles.
>
>Generally a lean mixture or hot spot.
>
>Your describing "detonation under load" which is usually fuel related.
>so my guess is clogged fuel filter, low fuel pressure/flow, or too
>low of an octane/bad gas, and sometimes sparkplugs if your running to
>high of a heat range or your picking up crossfire. How old is your filter?
>
>Crapoline: http://revbeergoggles.com/badgas/ Also what you can get
>out of a very old filter. http://www.revbeergoggles.com/temp/fuelfilter.jpg
I buy all my gas from Costco, and never have any problem with our
other car. They get gas delivery almost every day, so I know it is
fresh. Fuel filter older than I thought. Major tune was in 1999 at
64,000 miles. Looks like I am due.
<post.replies@invalid.address> wrote:
>---- did pass the time by typing:
>> I have a '93 JGC with the 318 V-8 engine. Having a lot of trouble
>> with detonation on hills. Using 87 octane gas, and driving at
>> altitudes over 5,000 feet. Other than the timing being off (don't
>> think so) what else causes detonation? How about the fuel injectors
>> needing cleaning? 95,000 miles.
>
>Generally a lean mixture or hot spot.
>
>Your describing "detonation under load" which is usually fuel related.
>so my guess is clogged fuel filter, low fuel pressure/flow, or too
>low of an octane/bad gas, and sometimes sparkplugs if your running to
>high of a heat range or your picking up crossfire. How old is your filter?
>
>Crapoline: http://revbeergoggles.com/badgas/ Also what you can get
>out of a very old filter. http://www.revbeergoggles.com/temp/fuelfilter.jpg
I buy all my gas from Costco, and never have any problem with our
other car. They get gas delivery almost every day, so I know it is
fresh. Fuel filter older than I thought. Major tune was in 1999 at
64,000 miles. Looks like I am due.
11-13-2005, 04:07 PM
#13
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
On Sun, 13 Nov 2005 12:40:03 -0600, "DougW"
<post.replies@invalid.address> wrote:
>---- did pass the time by typing:
>> I have a '93 JGC with the 318 V-8 engine. Having a lot of trouble
>> with detonation on hills. Using 87 octane gas, and driving at
>> altitudes over 5,000 feet. Other than the timing being off (don't
>> think so) what else causes detonation? How about the fuel injectors
>> needing cleaning? 95,000 miles.
>
>Generally a lean mixture or hot spot.
>
>Your describing "detonation under load" which is usually fuel related.
>so my guess is clogged fuel filter, low fuel pressure/flow, or too
>low of an octane/bad gas, and sometimes sparkplugs if your running to
>high of a heat range or your picking up crossfire. How old is your filter?
>
>Crapoline: http://revbeergoggles.com/badgas/ Also what you can get
>out of a very old filter. http://www.revbeergoggles.com/temp/fuelfilter.jpg
I buy all my gas from Costco, and never have any problem with our
other car. They get gas delivery almost every day, so I know it is
fresh. Fuel filter older than I thought. Major tune was in 1999 at
64,000 miles. Looks like I am due.
<post.replies@invalid.address> wrote:
>---- did pass the time by typing:
>> I have a '93 JGC with the 318 V-8 engine. Having a lot of trouble
>> with detonation on hills. Using 87 octane gas, and driving at
>> altitudes over 5,000 feet. Other than the timing being off (don't
>> think so) what else causes detonation? How about the fuel injectors
>> needing cleaning? 95,000 miles.
>
>Generally a lean mixture or hot spot.
>
>Your describing "detonation under load" which is usually fuel related.
>so my guess is clogged fuel filter, low fuel pressure/flow, or too
>low of an octane/bad gas, and sometimes sparkplugs if your running to
>high of a heat range or your picking up crossfire. How old is your filter?
>
>Crapoline: http://revbeergoggles.com/badgas/ Also what you can get
>out of a very old filter. http://www.revbeergoggles.com/temp/fuelfilter.jpg
I buy all my gas from Costco, and never have any problem with our
other car. They get gas delivery almost every day, so I know it is
fresh. Fuel filter older than I thought. Major tune was in 1999 at
64,000 miles. Looks like I am due.
11-13-2005, 04:10 PM
#14
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Thanks Jerry. I'll give that a try before I get a tune-up. Don't
want to pay the Jeep dealer to decarbonize if I can help it.
----
On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
wrote:
>Detonation/pinging is often caused by a carbon build-up inside the
>combustion chambers. The fastest/easiest/best way to get rid of the
>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>trickle around 16 ounces of water into the air intake (carb or throttle
>body) with the engine running. By slow, I mean it should take around
>two minutes to drain the container. Be sure too to keep good control on
>the container to avoid dumping the contents too quickly which could
>cause hydrolock/engine damage.
>
>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>deposits. The carbon causes the pinging by continuing to glow after the
>combustion stroke which then prematurely ignites the air-fuel mixture
>during the next combustion stroke.
>
>Jerry
want to pay the Jeep dealer to decarbonize if I can help it.
----
On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
wrote:
>Detonation/pinging is often caused by a carbon build-up inside the
>combustion chambers. The fastest/easiest/best way to get rid of the
>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>trickle around 16 ounces of water into the air intake (carb or throttle
>body) with the engine running. By slow, I mean it should take around
>two minutes to drain the container. Be sure too to keep good control on
>the container to avoid dumping the contents too quickly which could
>cause hydrolock/engine damage.
>
>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>deposits. The carbon causes the pinging by continuing to glow after the
>combustion stroke which then prematurely ignites the air-fuel mixture
>during the next combustion stroke.
>
>Jerry
11-13-2005, 04:10 PM
#15
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Thanks Jerry. I'll give that a try before I get a tune-up. Don't
want to pay the Jeep dealer to decarbonize if I can help it.
----
On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
wrote:
>Detonation/pinging is often caused by a carbon build-up inside the
>combustion chambers. The fastest/easiest/best way to get rid of the
>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>trickle around 16 ounces of water into the air intake (carb or throttle
>body) with the engine running. By slow, I mean it should take around
>two minutes to drain the container. Be sure too to keep good control on
>the container to avoid dumping the contents too quickly which could
>cause hydrolock/engine damage.
>
>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>deposits. The carbon causes the pinging by continuing to glow after the
>combustion stroke which then prematurely ignites the air-fuel mixture
>during the next combustion stroke.
>
>Jerry
want to pay the Jeep dealer to decarbonize if I can help it.
----
On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
wrote:
>Detonation/pinging is often caused by a carbon build-up inside the
>combustion chambers. The fastest/easiest/best way to get rid of the
>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>trickle around 16 ounces of water into the air intake (carb or throttle
>body) with the engine running. By slow, I mean it should take around
>two minutes to drain the container. Be sure too to keep good control on
>the container to avoid dumping the contents too quickly which could
>cause hydrolock/engine damage.
>
>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>deposits. The carbon causes the pinging by continuing to glow after the
>combustion stroke which then prematurely ignites the air-fuel mixture
>during the next combustion stroke.
>
>Jerry
11-13-2005, 04:10 PM
#16
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Thanks Jerry. I'll give that a try before I get a tune-up. Don't
want to pay the Jeep dealer to decarbonize if I can help it.
----
On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
wrote:
>Detonation/pinging is often caused by a carbon build-up inside the
>combustion chambers. The fastest/easiest/best way to get rid of the
>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>trickle around 16 ounces of water into the air intake (carb or throttle
>body) with the engine running. By slow, I mean it should take around
>two minutes to drain the container. Be sure too to keep good control on
>the container to avoid dumping the contents too quickly which could
>cause hydrolock/engine damage.
>
>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>deposits. The carbon causes the pinging by continuing to glow after the
>combustion stroke which then prematurely ignites the air-fuel mixture
>during the next combustion stroke.
>
>Jerry
want to pay the Jeep dealer to decarbonize if I can help it.
----
On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
wrote:
>Detonation/pinging is often caused by a carbon build-up inside the
>combustion chambers. The fastest/easiest/best way to get rid of the
>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>trickle around 16 ounces of water into the air intake (carb or throttle
>body) with the engine running. By slow, I mean it should take around
>two minutes to drain the container. Be sure too to keep good control on
>the container to avoid dumping the contents too quickly which could
>cause hydrolock/engine damage.
>
>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>deposits. The carbon causes the pinging by continuing to glow after the
>combustion stroke which then prematurely ignites the air-fuel mixture
>during the next combustion stroke.
>
>Jerry
11-13-2005, 04:20 PM
#17
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Look at the EGR circuit
--
Coasty
Remove the SPOOGE to reply
"----" <LeadWinger> wrote in message
news:brafn1d1e1to1h7vl7ei1bcukud85n60rs@4ax.com...
> Thanks Jerry. I'll give that a try before I get a tune-up. Don't
> want to pay the Jeep dealer to decarbonize if I can help it.
>
> ----
>
> On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>Detonation/pinging is often caused by a carbon build-up inside the
>>combustion chambers. The fastest/easiest/best way to get rid of the
>>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>>trickle around 16 ounces of water into the air intake (carb or throttle
>>body) with the engine running. By slow, I mean it should take around
>>two minutes to drain the container. Be sure too to keep good control on
>>the container to avoid dumping the contents too quickly which could
>>cause hydrolock/engine damage.
>>
>>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>>deposits. The carbon causes the pinging by continuing to glow after the
>>combustion stroke which then prematurely ignites the air-fuel mixture
>>during the next combustion stroke.
>>
>>Jerry
>
--
Coasty
Remove the SPOOGE to reply
"----" <LeadWinger> wrote in message
news:brafn1d1e1to1h7vl7ei1bcukud85n60rs@4ax.com...
> Thanks Jerry. I'll give that a try before I get a tune-up. Don't
> want to pay the Jeep dealer to decarbonize if I can help it.
>
> ----
>
> On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>Detonation/pinging is often caused by a carbon build-up inside the
>>combustion chambers. The fastest/easiest/best way to get rid of the
>>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>>trickle around 16 ounces of water into the air intake (carb or throttle
>>body) with the engine running. By slow, I mean it should take around
>>two minutes to drain the container. Be sure too to keep good control on
>>the container to avoid dumping the contents too quickly which could
>>cause hydrolock/engine damage.
>>
>>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>>deposits. The carbon causes the pinging by continuing to glow after the
>>combustion stroke which then prematurely ignites the air-fuel mixture
>>during the next combustion stroke.
>>
>>Jerry
>
11-13-2005, 04:20 PM
#18
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Look at the EGR circuit
--
Coasty
Remove the SPOOGE to reply
"----" <LeadWinger> wrote in message
news:brafn1d1e1to1h7vl7ei1bcukud85n60rs@4ax.com...
> Thanks Jerry. I'll give that a try before I get a tune-up. Don't
> want to pay the Jeep dealer to decarbonize if I can help it.
>
> ----
>
> On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>Detonation/pinging is often caused by a carbon build-up inside the
>>combustion chambers. The fastest/easiest/best way to get rid of the
>>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>>trickle around 16 ounces of water into the air intake (carb or throttle
>>body) with the engine running. By slow, I mean it should take around
>>two minutes to drain the container. Be sure too to keep good control on
>>the container to avoid dumping the contents too quickly which could
>>cause hydrolock/engine damage.
>>
>>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>>deposits. The carbon causes the pinging by continuing to glow after the
>>combustion stroke which then prematurely ignites the air-fuel mixture
>>during the next combustion stroke.
>>
>>Jerry
>
--
Coasty
Remove the SPOOGE to reply
"----" <LeadWinger> wrote in message
news:brafn1d1e1to1h7vl7ei1bcukud85n60rs@4ax.com...
> Thanks Jerry. I'll give that a try before I get a tune-up. Don't
> want to pay the Jeep dealer to decarbonize if I can help it.
>
> ----
>
> On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>Detonation/pinging is often caused by a carbon build-up inside the
>>combustion chambers. The fastest/easiest/best way to get rid of the
>>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>>trickle around 16 ounces of water into the air intake (carb or throttle
>>body) with the engine running. By slow, I mean it should take around
>>two minutes to drain the container. Be sure too to keep good control on
>>the container to avoid dumping the contents too quickly which could
>>cause hydrolock/engine damage.
>>
>>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>>deposits. The carbon causes the pinging by continuing to glow after the
>>combustion stroke which then prematurely ignites the air-fuel mixture
>>during the next combustion stroke.
>>
>>Jerry
>
11-13-2005, 04:20 PM
#19
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Look at the EGR circuit
--
Coasty
Remove the SPOOGE to reply
"----" <LeadWinger> wrote in message
news:brafn1d1e1to1h7vl7ei1bcukud85n60rs@4ax.com...
> Thanks Jerry. I'll give that a try before I get a tune-up. Don't
> want to pay the Jeep dealer to decarbonize if I can help it.
>
> ----
>
> On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>Detonation/pinging is often caused by a carbon build-up inside the
>>combustion chambers. The fastest/easiest/best way to get rid of the
>>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>>trickle around 16 ounces of water into the air intake (carb or throttle
>>body) with the engine running. By slow, I mean it should take around
>>two minutes to drain the container. Be sure too to keep good control on
>>the container to avoid dumping the contents too quickly which could
>>cause hydrolock/engine damage.
>>
>>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>>deposits. The carbon causes the pinging by continuing to glow after the
>>combustion stroke which then prematurely ignites the air-fuel mixture
>>during the next combustion stroke.
>>
>>Jerry
>
--
Coasty
Remove the SPOOGE to reply
"----" <LeadWinger> wrote in message
news:brafn1d1e1to1h7vl7ei1bcukud85n60rs@4ax.com...
> Thanks Jerry. I'll give that a try before I get a tune-up. Don't
> want to pay the Jeep dealer to decarbonize if I can help it.
>
> ----
>
> On Sun, 13 Nov 2005 12:32:17 -0800, Jerry Bransford <jerrypb@***.net>
> wrote:
>
>>Detonation/pinging is often caused by a carbon build-up inside the
>>combustion chambers. The fastest/easiest/best way to get rid of the
>>carbon is to use an old mechanic's technique. Slowly (SLOWLY!!!)
>>trickle around 16 ounces of water into the air intake (carb or throttle
>>body) with the engine running. By slow, I mean it should take around
>>two minutes to drain the container. Be sure too to keep good control on
>>the container to avoid dumping the contents too quickly which could
>>cause hydrolock/engine damage.
>>
>>This technique is VERY/COMPLETELY effective at getting rid of the carbon
>>deposits. The carbon causes the pinging by continuing to glow after the
>>combustion stroke which then prematurely ignites the air-fuel mixture
>>during the next combustion stroke.
>>
>>Jerry
>
11-13-2005, 05:24 PM
#20
Guest
Posts: n/a
Re: '93 JGC 318 Engine Ping Problem
Spend the extra money for a major oil company's higher octane and
proven additives. Or:
http://www.ultralightnews.com/hirth/readingpistons.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
---- wrote:
>
> I buy all my gas from Costco, and never have any problem with our
> other car. They get gas delivery almost every day, so I know it is
> fresh. Fuel filter older than I thought. Major tune was in 1999 at
> 64,000 miles. Looks like I am due.
proven additives. Or:
http://www.ultralightnews.com/hirth/readingpistons.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
---- wrote:
>
> I buy all my gas from Costco, and never have any problem with our
> other car. They get gas delivery almost every day, so I know it is
> fresh. Fuel filter older than I thought. Major tune was in 1999 at
> 64,000 miles. Looks like I am due.