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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

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

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#80 of 168 s10 ss just died by s10ss Sep 27, 2007 (11:28 pm)
i have a question about my 4.3 s10 ss stalling...iwas cruising at about 55 and 1500rpm when all of a sudden it just cut out...i was wonderng if thiswas a common problem..orif it could be the fuel pump or something...
#81 of 168 91 gmc s15 stumble on acceleration by keltecbob Nov 01, 2007 (2:26 pm)
My son has a 91 s15,4.3L that has started to stumble on acceleration. It only gives a code for rich fuel mixture. I jump the code reader and watch the service eng. light flash a 45 code. I have changed the O2 sensor, and rebuilt the internal fuel regulator in the throttle body. Also has new inline fuel filterChecked the tps for out of range voltage, seemed fine. Cleaned EGR valve, wasn't too bad. But it still stumbles at each shift, and if I force the accelerator to make it shift it will stumble even more. I looked into the throttle body at idle and both injectors look to be giving lots of fuel, maybe too much at idle. Tried to test the Idle air control sensor but not sure if I did that right? Any ideas or how to test sensors better would be appreciated.
#82 of 168 Re: 93 GMC Sonoma Hesitation while acceleration [acrumpler] by camojockey Nov 01, 2007 (5:07 pm)
Replying to: acrumpler (Jan 01, 2007 5:10 pm) hi, is your truck T.B.I.? if so check your egr valve and the egr solonoid. My 89 TBI had same prob. egr was opening and dropping vacuum in engine Maybe it will help Replies to this message: keltecbob (Nov 01, 2007 8:54 pm)
#83 of 168 Re: 93 GMC Sonoma Hesitation while acceleration [camojockey] by keltecbob Nov 01, 2007 (8:54 pm)
Replying to: camojockey (Nov 01, 2007 5:07 pm) Hi, yes it is a tbi. I tried cleaning egr and it didn't appear to have any problem moving. Dont know where or if this model has an egr solenoid. It has a vacuum hose coming out of it. still researching this one.   Bob
#84 of 168 Re: S10 1995 2.2 JUST DIE / pls help [kreepin97] by philscbx Nov 13, 2007 (7:48 am)
Replying to: kreepin97 (May 31, 2006 3:48 am) I'd bet good money your are right
#85 of 168 Re: Erratic Idle and Acceleration probs in WET weather [dthesman] by philscbx Nov 13, 2007 (7:56 am)
Replying to: dthesman (Jan 13, 2007 8:54 pm) I want to see this beast. Got any images? Because when I'm ready, I'll dump the 4.3 when it's due time. I might go to a lighter weight V8 like from a Lexus or Beamer.   http://farm3.static.flickr.com/2378/2000071501_23bcf8e618_o.jpg
#86 of 168 Re: cutting out [wookie1] by reddawg1 Nov 15, 2007 (1:32 pm)
Replying to: wookie1 (Jul 25, 2007 10:35 am) I am currently working on a 95 Sonoma am having trouble keeping it running. have replaced all sensors engine will start but only runs for a few seconds and then shuts off if anyone has any ideas i would appreciate any help. Replies to this message: keltecbob (Nov 16, 2007 2:52 pm)
#87 of 168 Re: cutting out [reddawg1] by keltecbob Nov 16, 2007 (2:52 pm)
Replying to: reddawg1 (Nov 15, 2007 1:32 pm) My son has a 91 s15 that stumbles on acceleration. I have replaced the fuel regulator, fuel filter, replaced plugs, check wires for continuity, replaced o2 sensor. This vehicle idles fine until it reaches running temp. then it stumbles severely on accerleration and then throws rich fuel mixture on the o2 sensor. How much fuel should one see coming out of the injectors into the throttle body while it is idling. This one seems to be alot. I can see it covering the walls and plate pretty well just when idling. I tried to test the tps and the ignition coil and the ignition pickup inside the dist. but not sure if I am doing it right. Any help would be appreciated.   Bob
#88 of 168 1988 Chevy S-10 running problems by michelle1971 Nov 22, 2007 (6:10 pm)
1988 Chevy S-10 2.6 V-6 4 wheel drive.When I drive the truck for 30 minutes I have to keep my foot on the gas a little, because If I don't the truck dies, and when I start it up it acts like the battery doesn't have the volts, but it only does this when the engine is normal temperature. Please help me out on this!
#89 of 168 dying if I don't keep foot on gas after it warms up by michelle1971 Nov 23, 2007 (6:51 pm)
When the truck warms up to normal temp,when I stop at traffic lights or stop signs, if I don't keep my foot on the gas stopped,the truck will die and when I try to start it up the starter tries to drag only when it dies.Please help me out with a solution? Replies to this message: michaelm5 (Dec 02, 2007 2:45 pm)

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