1986 Jeep Grand Wagoneer
 

Recently driving back from NH my car backfired twice (travelling about
70mph) and then died. I pulled off road and whan I restarted it it
back fired so loud it blew the muffler. Service guy said it was a
fuel problem as it was blowing un spent fuel out the exhaust. I did a
carb rebuild and it starts fine and runs for about ten seconds and
dies, again with the same fuel problem. Seems to be flooded. Any one
have any ideas. I have heard everything from fuel pump to timing to
ignition module and various other causes. Not sure if I should
purchase a new carb or if it something else, perhaps the catalytic
converter.

Thanks for any help.

Jim

Re: 1986 Jeep Grand Wagoneer
 

The first thing to check is the ignition system, because components are
cheap and easy to replace or inspect. Plug wires can do this. You would
feel silly working on a carburetor all day, and then finding out you had a
cracked distributor cap.

Which engine do you have?

Saludos cordiales,

Earle

<jimmy3stix@comcast.net> wrote in message
news:1183736977.741464.193660@g4g2000hsf.googlegro ups.com...
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.
>
> Thanks for any help.
>
> Jim
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: 1986 Jeep Grand Wagoneer
 

The first thing to check is the ignition system, because components are
cheap and easy to replace or inspect. Plug wires can do this. You would
feel silly working on a carburetor all day, and then finding out you had a
cracked distributor cap.

Which engine do you have?

Saludos cordiales,

Earle

<jimmy3stix@comcast.net> wrote in message
news:1183736977.741464.193660@g4g2000hsf.googlegro ups.com...
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.
>
> Thanks for any help.
>
> Jim
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: 1986 Jeep Grand Wagoneer
 

The first thing to check is the ignition system, because components are
cheap and easy to replace or inspect. Plug wires can do this. You would
feel silly working on a carburetor all day, and then finding out you had a
cracked distributor cap.

Which engine do you have?

Saludos cordiales,

Earle

<jimmy3stix@comcast.net> wrote in message
news:1183736977.741464.193660@g4g2000hsf.googlegro ups.com...
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.
>
> Thanks for any help.
>
> Jim
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: 1986 Jeep Grand Wagoneer
 

The first thing to check is the ignition system, because components are
cheap and easy to replace or inspect. Plug wires can do this. You would
feel silly working on a carburetor all day, and then finding out you had a
cracked distributor cap.

Which engine do you have?

Saludos cordiales,

Earle

<jimmy3stix@comcast.net> wrote in message
news:1183736977.741464.193660@g4g2000hsf.googlegro ups.com...
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.
>
> Thanks for any help.
>
> Jim
>



--
Posted via a free Usenet account from http://www.teranews.com

Re: 1986 Jeep Grand Wagoneer
 

jimmy3stix wrote:
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.

1986 doesn't have that much that can go wrong. I'd suspect a cracked
sparkplug, bad wire, or cracked cap/rotor that's preventing one of the
cylinders from getting spark. That gas is pushed out and subsequently
lit by the cat.

I've had sparkplugs that looked good but arced internally. Also had
a few that fell apart when they were removed. Go get some good
Autolite plugs.

--
DougW

Re: 1986 Jeep Grand Wagoneer
 

jimmy3stix wrote:
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.

1986 doesn't have that much that can go wrong. I'd suspect a cracked
sparkplug, bad wire, or cracked cap/rotor that's preventing one of the
cylinders from getting spark. That gas is pushed out and subsequently
lit by the cat.

I've had sparkplugs that looked good but arced internally. Also had
a few that fell apart when they were removed. Go get some good
Autolite plugs.

--
DougW

Re: 1986 Jeep Grand Wagoneer
 

jimmy3stix wrote:
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.

1986 doesn't have that much that can go wrong. I'd suspect a cracked
sparkplug, bad wire, or cracked cap/rotor that's preventing one of the
cylinders from getting spark. That gas is pushed out and subsequently
lit by the cat.

I've had sparkplugs that looked good but arced internally. Also had
a few that fell apart when they were removed. Go get some good
Autolite plugs.

--
DougW

Re: 1986 Jeep Grand Wagoneer
 

jimmy3stix wrote:
> Recently driving back from NH my car backfired twice (travelling about
> 70mph) and then died. I pulled off road and whan I restarted it it
> back fired so loud it blew the muffler. Service guy said it was a
> fuel problem as it was blowing un spent fuel out the exhaust. I did a
> carb rebuild and it starts fine and runs for about ten seconds and
> dies, again with the same fuel problem. Seems to be flooded. Any one
> have any ideas. I have heard everything from fuel pump to timing to
> ignition module and various other causes. Not sure if I should
> purchase a new carb or if it something else, perhaps the catalytic
> converter.

1986 doesn't have that much that can go wrong. I'd suspect a cracked
sparkplug, bad wire, or cracked cap/rotor that's preventing one of the
cylinders from getting spark. That gas is pushed out and subsequently
lit by the cat.

I've had sparkplugs that looked good but arced internally. Also had
a few that fell apart when they were removed. Go get some good
Autolite plugs.

--
DougW

Re: 1986 Jeep Grand Wagoneer
 

On Jul 6, 11:54 am, "Earle Horton" <el_anglo_burg...@usa.com> wrote:
> The first thing to check is the ignition system, because components are
> cheap and easy to replace or inspect. Plug wires can do this. You would
> feel silly working on a carburetor all day, and then finding out you had a
> cracked distributor cap.
>
> Which engine do you have?
>
> Saludos cordiales,
>
> Earle
>
> <jimmy3s...@comcast.net> wrote in message
>
> news:1183736977.741464.193660@g4g2000hsf.googlegro ups.com...
>
> > Recently driving back from NH my car backfired twice (travelling about
> > 70mph) and then died. I pulled off road and whan I restarted it it
> > back fired so loud it blew the muffler. Service guy said it was a
> > fuel problem as it was blowing un spent fuel out the exhaust. I did a
> > carb rebuild and it starts fine and runs for about ten seconds and
> > dies, again with the same fuel problem. Seems to be flooded. Any one
> > have any ideas. I have heard everything from fuel pump to timing to
> > ignition module and various other causes. Not sure if I should
> > purchase a new carb or if it something else, perhaps the catalytic
> > converter.
>
> > Thanks for any help.
>
> > Jim
>
> --
> Posted via a free Usenet account fromhttp://www.teranews.com

Engine is 4.9L V8. Wires, plugs and distributer cap replaced about
3000 miles ago. Car was running fine up until that point, however I
had just refueled 30 miles previous after letting fuel run too low
(gauge is tempermental). Thought I may have picked up a vapor lock
along the way. I will pull the plugs tonight though and look for any
tell tale signs.