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External
Since: Jul 27, 2006
Posts: 1
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(Msg. 1) Posted: Thu Jul 27, 2006 1:55 pm
Post subject: 96 GMC Jimmy Engine cut out
Archived from groups: alt>autos>4x4>chevy-trucks (more info?)
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Last night I had the strangest problems with my 96 GMC Jimmy.
(Bear with me)
Driving on a very hot day (38*C, 101*F) we drove about 30 KM, I had to
slow down for a left turner, I gave the truck some juice, it started to
accelerate, then seemed to cough, and then flat-lined. The engine just
stopped.
Having experienced this once before, I swore, got out, beat the gas
tank with a handy stick, jumped back in and it turned over right away.
I hastily turned tail and headed for home.
Clear cut case of a bad pump, right? Read on!
We drove about 10 or 15 minutes and it died once again. To myself I
said "That's it! A bang will get it going once, almost never twice."
but since I had my wife and 2 of my 3 kids with me, I dutifully got out
and banged again. To my amazement, it turned over once more.
3 minutes down the road, it quits yet again. This time I pull over,
count to five (no hitting this time) and try cranking again. She starts
right up.
This time we made it 25 minutes and were 1/2 block from making it home
before it quit yet AGAIN. Once again I counted to 5, turned it over and
it started right up.
An hour later we drove it to the bank and back, just to see. Started
fine every time.
This morning my wife took it out for a quick trip, no problems. Then I
drove it to work, again no problems.
PLEASE tell me someone has a good idea what this might be. I'm not a
mechanic, but am a pretty good hobbyist. This has me stumped.
Details:
96 GMC Jimmy SLT
4.3 Liter Vortec V6
344,000 KMs
80,000 (+/-) on the last pump. |
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External
Since: Jul 13, 2006
Posts: 7
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(Msg. 2) Posted: Thu Jul 27, 2006 1:55 pm
Post subject: Re: 96 GMC Jimmy Engine cut out [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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It still sounds like a fuel pump getting weak to me.
"Chris" <chrisj.DeleteThis@sagekey.nospam.com> wrote in message
news:sF5yg.142057$I61.114014@clgrps13...
> Last night I had the strangest problems with my 96 GMC Jimmy.
> (Bear with me)
>
> Driving on a very hot day (38*C, 101*F) we drove about 30 KM, I had to
> slow down for a left turner, I gave the truck some juice, it started to
> accelerate, then seemed to cough, and then flat-lined. The engine just
> stopped.
>
> Having experienced this once before, I swore, got out, beat the gas
> tank with a handy stick, jumped back in and it turned over right away.
> I hastily turned tail and headed for home.
>
> Clear cut case of a bad pump, right? Read on!
>
> We drove about 10 or 15 minutes and it died once again. To myself I
> said "That's it! A bang will get it going once, almost never twice."
> but since I had my wife and 2 of my 3 kids with me, I dutifully got out
> and banged again. To my amazement, it turned over once more.
>
> 3 minutes down the road, it quits yet again. This time I pull over,
> count to five (no hitting this time) and try cranking again. She starts
> right up.
>
> This time we made it 25 minutes and were 1/2 block from making it home
> before it quit yet AGAIN. Once again I counted to 5, turned it over and
> it started right up.
>
> An hour later we drove it to the bank and back, just to see. Started
> fine every time.
>
> This morning my wife took it out for a quick trip, no problems. Then I
> drove it to work, again no problems.
>
> PLEASE tell me someone has a good idea what this might be. I'm not a
> mechanic, but am a pretty good hobbyist. This has me stumped.
>
> Details:
> 96 GMC Jimmy SLT
> 4.3 Liter Vortec V6
> 344,000 KMs
> 80,000 (+/-) on the last pump.
>
> |
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External
Since: Aug 04, 2004
Posts: 34
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(Msg. 3) Posted: Thu Jul 27, 2006 5:55 pm
Post subject: Re: 96 GMC Jimmy Engine cut out [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Chris wrote:
> Last night I had the strangest problems with my 96 GMC Jimmy.
> (Bear with me)
>
> Driving on a very hot day (38*C, 101*F) we drove about 30 KM, I had to
> slow down for a left turner, I gave the truck some juice, it started to
> accelerate, then seemed to cough, and then flat-lined. The engine just
> stopped.
>
> Having experienced this once before, I swore, got out, beat the gas
> tank with a handy stick, jumped back in and it turned over right away.
> I hastily turned tail and headed for home.
>
> Clear cut case of a bad pump, right? Read on!
>
> We drove about 10 or 15 minutes and it died once again. To myself I
> said "That's it! A bang will get it going once, almost never twice."
> but since I had my wife and 2 of my 3 kids with me, I dutifully got out
> and banged again. To my amazement, it turned over once more.
>
> 3 minutes down the road, it quits yet again. This time I pull over,
> count to five (no hitting this time) and try cranking again. She starts
> right up.
>
> This time we made it 25 minutes and were 1/2 block from making it home
> before it quit yet AGAIN. Once again I counted to 5, turned it over and
> it started right up.
>
> An hour later we drove it to the bank and back, just to see. Started
> fine every time.
>
> This morning my wife took it out for a quick trip, no problems. Then I
> drove it to work, again no problems.
>
> PLEASE tell me someone has a good idea what this might be. I'm not a
> mechanic, but am a pretty good hobbyist. This has me stumped.
>
> Details:
> 96 GMC Jimmy SLT
> 4.3 Liter Vortec V6
> 344,000 KMs
> 80,000 (+/-) on the last pump.
>
>
You MIGHT have corrosion on the positive battery cable/terminal
connection. When it happens, turn the key to start (the motor does not
turn over). Have someone gently wiggle the positive battery terminal
(while you hold the key in start). Make sure everything
(arms-fingers...) is clear of rotating parts.
To fix it.
Take the positive terminal off. It has 2 cables attached. One of the
cables feeds the starter, the other feeds everything else. Split the
rubber boot and separate the terminals and spacer washer. There will
likely be a lot of corrosion here. Wire brush everything good and soak
in baking soda solution, then wire brush it again. Once you have bright
metal, reassemble the terminals, washer, and bolt. Now there are two
schools of thought here for what to do next. One says to coat the
terminals with vaseline to inhibit corrosion. The other says to coat
the terminals with an insulating rubber compound that you can brush on.
I have used the vaseline solution with great success. Be carefull around
the battery after this, as there is an exposed 12 volt source.
KenG >> Stay informed about: 96 GMC Jimmy Engine cut out |
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External
Since: Jul 26, 2006
Posts: 2
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(Msg. 4) Posted: Fri Jul 28, 2006 7:26 pm
Post subject: Re: 96 GMC Jimmy Engine cut out [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Fuel pumps either work, or they don't. No in between. The truck has
never stopped turning over, so it's not a battery post. The engine
quit, but still had volts showing on the dash.
Suggestions have been:
1) Crank shaft sensor
2) Distributor cap >> Stay informed about: 96 GMC Jimmy Engine cut out |
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External
Since: Jan 12, 2005
Posts: 87
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(Msg. 5) Posted: Fri Jul 28, 2006 9:57 pm
Post subject: Re: 96 GMC Jimmy Engine cut out [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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well i must tell you that three of us had that problem and in each case it
was solved by removing the battery cables and REALLY
cleaning them good.
1. scrape of corrosion inside cable connections(they sre corroded and you
cannot see it without removing them)
2.rinse with baking soda mixed with water to a paste mix
3. make sure connecting bolts are in good shape
4. clean the battery cable mount faces
rinse cleaned terminals with clear water to remove paste residue.
remount to cleaned battery connections
reattatch all cleaned parts.
in every case, the starter would turn the engine over, but if it even
started, it would run rough and the dash lights would indicate stop,start go
old john
<chris.bremmer DeleteThis @gmail.com> wrote in message
news:1154140005.296408.281000@b28g2000cwb.googlegroups.com...
> Fuel pumps either work, or they don't. No in between. The truck has
> never stopped turning over, so it's not a battery post. The engine
> quit, but still had volts showing on the dash.
>
> Suggestions have been:
> 1) Crank shaft sensor
> 2) Distributor cap
> >> Stay informed about: 96 GMC Jimmy Engine cut out |
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External
Since: Jul 31, 2006
Posts: 1
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(Msg. 6) Posted: Mon Jul 31, 2006 8:20 am
Post subject: Re: 96 GMC Jimmy Engine cut out [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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I'll give it a shot when I replace the distributor cap tonight.
It's been almost a week, haven't touched it and it is still running
fine. No warning lights on the dash, now or then. Has been running
rough (once in a while, for a moment or two) and hesitating once in a
while for some time though, so can't hurt to try.
Thanks for the advice no matter. >> Stay informed about: 96 GMC Jimmy Engine cut out |
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