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Chevy S10 - GMC S15 and Sonoma Stalling/Dying issues

168 messages,  Last post on Nov 02, 2009 at 11:36 AM

You are in the Chevrolet S-10 & GMC S15 Sonoma Forum. Your Host is kcram

What is this discussion about? Chevrolet S-10, GMC Sonoma, GMC S-15, Truck


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#129 of 168
Re: Stalling/dying [mthompson1] by hayman1
Dec 15, 2008 (4:18 pm)
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Replying to: mthompson1 (Sep 13, 2008 6:42 am)

I'm having the same problem but hasn't thrown that code. Have you ever found the problem?
#130 of 168
Re: Stalling/dying [hayman1] by hayman1
Dec 17, 2008 (1:37 pm)
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Replying to: hayman1 (Dec 15, 2008 4:18 pm)

I found the problem the small rubber line between the pump and line in the tank ruptured.
#131 of 168
93 Sonoma Stalled on highway by doc15
Jan 03, 2009 (6:26 am)
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Had my truck just stall while driving on the road. First thing I though of was maybe a fuel problem, changed the filter and still no luck. Did not think of it at first but realized the fuel pump was not kicking on, also found the battery was drained down. Took the alternator and had it checked and found it was charging at 17 V. Also found the ECM fuse was blown. Changed the fuse and the alternator and the truck started right up, ran for about 3 min and shut right off again. The ECM fuse keeps blowing. Replaced the Fuel pump relay and still no luck. When you turn the key on it instantly blows the ECM fuse. Take the fuel pump relay apart and the fuse does not blow, but naturally the truck won't start. Also just for the sake of spending money to help the economy, I replaced the ECM. Help!!!!!!!! Doc
#132 of 168
Re: 93 Sonoma Stalled on highway [doc15] by gonogo
Jan 03, 2009 (7:47 am)
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Replying to: doc15 (Jan 03, 2009 6:26 am)

As you know that fuse is also for the fuel pump. Disconnect the fuel pump at the tank, if it still blows, check the fuel pump wiring for a short to ground.
#133 of 168
Stalling / Dying S10 by JAust
Jan 03, 2009 (7:55 pm)
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I have also done everything I could think of but still the truck will idle fine but won't move when driving. Fuel pump checked ok, new fuel filter, new air filter, spark plugs, spark wires, distributor cap and rotor. Truck still wants to buck and cut out when cruising going uphill and putting it under a load. Has anyone had any luck with cleaning up the injector contacts under the manifold cover or by replacing the PCM?
#134 of 168
Re: 93 Sonoma Stalled on highway [gonogo] by doc15
Jan 07, 2009 (7:10 pm)
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Replying to: gonogo (Jan 03, 2009 7:47 am)

What exactly goes bad with the fuel pump? Is it necessary to replace the whole inside the tank fuel pump to correct the problem? How hard is it to drop the tank on this truck? Sorry for all the questions, it's just things coming in my head, that I'm not looking forward to. Thanks, Doc
#135 of 168
Re: 93 Sonoma Stalled on highway [doc15] by gonogo
Jan 08, 2009 (8:27 am)
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Replying to: doc15 (Jan 07, 2009 7:10 pm)

The motor part, the brushes wear out. They come as a module, the best prices are online, I recommend another Delco.
If I was to do mine I would loosen all the bolts on the passenger side of the bed, leave the nuts on a few threads. Don't forget the wiring, ground, tail lights, fill hose etc.. Remove all the bolts on the driver side, jack up the driver side until you have enough clearance. You must trig the bed really good so it will not fall on you.
Well dropping the tank is not too bad if empty, if lots of fuel you need a jack.
FWIW the pumps don't usually blow the fuse, a short in the wiring would.
#136 of 168
Re: 93 Sonoma Stalled on highway [gonogo] by doc15
Jan 10, 2009 (8:47 pm)
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Replying to: gonogo (Jan 08, 2009 8:27 am)

Just to let you know, I did replace the fuel pump today, all went ok and the truck purrs like a kitten. Thanks for all your help. Do
#137 of 168
Re: 93 Sonoma Stalled on highway [doc15] by gonogo
Jan 11, 2009 (6:18 am)
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Replying to: doc15 (Jan 10, 2009 8:47 pm)

Thanks for the update.
#138 of 168
Overheating 93 Sonoma by doc15
Mar 14, 2009 (11:48 am)
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Have an overheating problem with my 93 Sonoma 4.3 EFI
I can't seem to put enough water or coolant in the radiator. I fill it and can stand there and watch the level go down. The radiator just never seems to fill. The other thing is I turned on the heater and it started blowing hot air but then it turned cool. Don't know if these are connected or not? Any suggestions? Thanks, Doc

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