Re: Speculation, please?
 

How about something simple like water in the fuel ... (too lazy to read
through all the other responses).

"travis" <travist34removethis@hotmail.com> wrote in message
news:f5vmsvstc3ggcrdu8od070q4ehsnk91bbg@4ax.com...
> I'm worried about my CJ5. Yesterday while driving home from the
> trails I got out on the highway and got up to about 75 mph in a hurry
> to merge, then slowed down to about 65. Maybe 30 seconds later
> several LOUD bangs/knocks (about 10-15 maybe) came from what sounded
> like under the hood. With each bang there was a dramatic power drop
> for a fraction of a second. This happened really quickly like within
> 25-30 seconds or so. I let off on the gas and it seemed to help a
> little bit. Each time I'd ease back on the gas the bangs would
> return. I slowed down to about 50 mph and the banging sound went
> away. I slowly sped back up to about 60 mph and made it the rest of
> the way home without incident. I noticed when this all was happening
> that my oil pressure stayed steady and my water temp was also steady.
> Then... when I was driving to work this morning I heard 3-4 loud
> bangs within less than 10 seconds while driving at about 65 mph on the
> highway. I felt the same power drop and again noticed oil pressure
> and temp remained unchanged. The problem "went away" again. I'm
> thinking maybe it's backfiring through the carb (I'll check for burn
> marks around the air cleaner later today) or maybe...just maybe...I
> seem to recall a similar feel/sound from about 12-13 years ago when an
> old Pontiac I had did something like this... turned out it had a
> couple of lifters that were about to give up the ghost, or pretty much
> had given up the ghost by the time I opened up the motor and replaced
> them. Can y'all speculate on best-case/worst-case scenarios? Sorry I
> can't give a better description of the sound. Ideas of stuff for me
> to look at? Thank you in advance for input.
>
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> Happy trails!!!
> :wq!

Re: Speculation, please?
 

How about something simple like water in the fuel ... (too lazy to read
through all the other responses).

"travis" <travist34removethis@hotmail.com> wrote in message
news:f5vmsvstc3ggcrdu8od070q4ehsnk91bbg@4ax.com...
> I'm worried about my CJ5. Yesterday while driving home from the
> trails I got out on the highway and got up to about 75 mph in a hurry
> to merge, then slowed down to about 65. Maybe 30 seconds later
> several LOUD bangs/knocks (about 10-15 maybe) came from what sounded
> like under the hood. With each bang there was a dramatic power drop
> for a fraction of a second. This happened really quickly like within
> 25-30 seconds or so. I let off on the gas and it seemed to help a
> little bit. Each time I'd ease back on the gas the bangs would
> return. I slowed down to about 50 mph and the banging sound went
> away. I slowly sped back up to about 60 mph and made it the rest of
> the way home without incident. I noticed when this all was happening
> that my oil pressure stayed steady and my water temp was also steady.
> Then... when I was driving to work this morning I heard 3-4 loud
> bangs within less than 10 seconds while driving at about 65 mph on the
> highway. I felt the same power drop and again noticed oil pressure
> and temp remained unchanged. The problem "went away" again. I'm
> thinking maybe it's backfiring through the carb (I'll check for burn
> marks around the air cleaner later today) or maybe...just maybe...I
> seem to recall a similar feel/sound from about 12-13 years ago when an
> old Pontiac I had did something like this... turned out it had a
> couple of lifters that were about to give up the ghost, or pretty much
> had given up the ghost by the time I opened up the motor and replaced
> them. Can y'all speculate on best-case/worst-case scenarios? Sorry I
> can't give a better description of the sound. Ideas of stuff for me
> to look at? Thank you in advance for input.
>
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> Happy trails!!!
> :wq!

Re: Speculation, please?
 

How about something simple like water in the fuel ... (too lazy to read
through all the other responses).

"travis" <travist34removethis@hotmail.com> wrote in message
news:f5vmsvstc3ggcrdu8od070q4ehsnk91bbg@4ax.com...
> I'm worried about my CJ5. Yesterday while driving home from the
> trails I got out on the highway and got up to about 75 mph in a hurry
> to merge, then slowed down to about 65. Maybe 30 seconds later
> several LOUD bangs/knocks (about 10-15 maybe) came from what sounded
> like under the hood. With each bang there was a dramatic power drop
> for a fraction of a second. This happened really quickly like within
> 25-30 seconds or so. I let off on the gas and it seemed to help a
> little bit. Each time I'd ease back on the gas the bangs would
> return. I slowed down to about 50 mph and the banging sound went
> away. I slowly sped back up to about 60 mph and made it the rest of
> the way home without incident. I noticed when this all was happening
> that my oil pressure stayed steady and my water temp was also steady.
> Then... when I was driving to work this morning I heard 3-4 loud
> bangs within less than 10 seconds while driving at about 65 mph on the
> highway. I felt the same power drop and again noticed oil pressure
> and temp remained unchanged. The problem "went away" again. I'm
> thinking maybe it's backfiring through the carb (I'll check for burn
> marks around the air cleaner later today) or maybe...just maybe...I
> seem to recall a similar feel/sound from about 12-13 years ago when an
> old Pontiac I had did something like this... turned out it had a
> couple of lifters that were about to give up the ghost, or pretty much
> had given up the ghost by the time I opened up the motor and replaced
> them. Can y'all speculate on best-case/worst-case scenarios? Sorry I
> can't give a better description of the sound. Ideas of stuff for me
> to look at? Thank you in advance for input.
>
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> Happy trails!!!
> :wq!

Re: Speculation, please?
 

travis writes:

> maybe it's backfiring through the carb

Backfiring is, by definition, through the intake.

Re: Speculation, please?
 

travis writes:

> maybe it's backfiring through the carb

Backfiring is, by definition, through the intake.

Re: Speculation, please?
 

travis writes:

> maybe it's backfiring through the carb

Backfiring is, by definition, through the intake.

Re: Speculation, please?
 

Ignition problem, it's cutting out on at least one cylinder, when
it comes back it fires all the unburned gas that has accumulated.
Time to change points (if yours has them), cap, rotor, wires, and
the ignition module (if you have one)

travis wrote:

> I'm worried about my CJ5. Yesterday while driving home from the
> trails I got out on the highway and got up to about 75 mph in a hurry
> to merge, then slowed down to about 65. Maybe 30 seconds later
> several LOUD bangs/knocks (about 10-15 maybe) came from what sounded
> like under the hood. With each bang there was a dramatic power drop
> for a fraction of a second. This happened really quickly like within
> 25-30 seconds or so. I let off on the gas and it seemed to help a
> little bit. Each time I'd ease back on the gas the bangs would
> return. I slowed down to about 50 mph and the banging sound went
> away. I slowly sped back up to about 60 mph and made it the rest of
> the way home without incident. I noticed when this all was happening
> that my oil pressure stayed steady and my water temp was also steady.
> Then... when I was driving to work this morning I heard 3-4 loud
> bangs within less than 10 seconds while driving at about 65 mph on the
> highway. I felt the same power drop and again noticed oil pressure
> and temp remained unchanged. The problem "went away" again. I'm
> thinking maybe it's backfiring through the carb (I'll check for burn
> marks around the air cleaner later today) or maybe...just maybe...I
> seem to recall a similar feel/sound from about 12-13 years ago when an
> old Pontiac I had did something like this... turned out it had a
> couple of lifters that were about to give up the ghost, or pretty much
> had given up the ghost by the time I opened up the motor and replaced
> them. Can y'all speculate on best-case/worst-case scenarios? Sorry I
> can't give a better description of the sound. Ideas of stuff for me
> to look at? Thank you in advance for input.
>
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> Happy trails!!!
> :wq!

Re: Speculation, please?
 

Ignition problem, it's cutting out on at least one cylinder, when
it comes back it fires all the unburned gas that has accumulated.
Time to change points (if yours has them), cap, rotor, wires, and
the ignition module (if you have one)

travis wrote:

> I'm worried about my CJ5. Yesterday while driving home from the
> trails I got out on the highway and got up to about 75 mph in a hurry
> to merge, then slowed down to about 65. Maybe 30 seconds later
> several LOUD bangs/knocks (about 10-15 maybe) came from what sounded
> like under the hood. With each bang there was a dramatic power drop
> for a fraction of a second. This happened really quickly like within
> 25-30 seconds or so. I let off on the gas and it seemed to help a
> little bit. Each time I'd ease back on the gas the bangs would
> return. I slowed down to about 50 mph and the banging sound went
> away. I slowly sped back up to about 60 mph and made it the rest of
> the way home without incident. I noticed when this all was happening
> that my oil pressure stayed steady and my water temp was also steady.
> Then... when I was driving to work this morning I heard 3-4 loud
> bangs within less than 10 seconds while driving at about 65 mph on the
> highway. I felt the same power drop and again noticed oil pressure
> and temp remained unchanged. The problem "went away" again. I'm
> thinking maybe it's backfiring through the carb (I'll check for burn
> marks around the air cleaner later today) or maybe...just maybe...I
> seem to recall a similar feel/sound from about 12-13 years ago when an
> old Pontiac I had did something like this... turned out it had a
> couple of lifters that were about to give up the ghost, or pretty much
> had given up the ghost by the time I opened up the motor and replaced
> them. Can y'all speculate on best-case/worst-case scenarios? Sorry I
> can't give a better description of the sound. Ideas of stuff for me
> to look at? Thank you in advance for input.
>
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> Happy trails!!!
> :wq!

Re: Speculation, please?
 

Ignition problem, it's cutting out on at least one cylinder, when
it comes back it fires all the unburned gas that has accumulated.
Time to change points (if yours has them), cap, rotor, wires, and
the ignition module (if you have one)

travis wrote:

> I'm worried about my CJ5. Yesterday while driving home from the
> trails I got out on the highway and got up to about 75 mph in a hurry
> to merge, then slowed down to about 65. Maybe 30 seconds later
> several LOUD bangs/knocks (about 10-15 maybe) came from what sounded
> like under the hood. With each bang there was a dramatic power drop
> for a fraction of a second. This happened really quickly like within
> 25-30 seconds or so. I let off on the gas and it seemed to help a
> little bit. Each time I'd ease back on the gas the bangs would
> return. I slowed down to about 50 mph and the banging sound went
> away. I slowly sped back up to about 60 mph and made it the rest of
> the way home without incident. I noticed when this all was happening
> that my oil pressure stayed steady and my water temp was also steady.
> Then... when I was driving to work this morning I heard 3-4 loud
> bangs within less than 10 seconds while driving at about 65 mph on the
> highway. I felt the same power drop and again noticed oil pressure
> and temp remained unchanged. The problem "went away" again. I'm
> thinking maybe it's backfiring through the carb (I'll check for burn
> marks around the air cleaner later today) or maybe...just maybe...I
> seem to recall a similar feel/sound from about 12-13 years ago when an
> old Pontiac I had did something like this... turned out it had a
> couple of lifters that were about to give up the ghost, or pretty much
> had given up the ghost by the time I opened up the motor and replaced
> them. Can y'all speculate on best-case/worst-case scenarios? Sorry I
> can't give a better description of the sound. Ideas of stuff for me
> to look at? Thank you in advance for input.
>
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> Happy trails!!!
> :wq!

Re: Speculation, please?
 

Richard J Kinch did pass the time by typing:
> travis writes:
>
>> maybe it's backfiring through the carb
>
> Backfiring is, by definition, through the intake.

Unless your talking fifteen-bean soup.

GD&R

--
DougW