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Chevy S10 - GMC S15 and Sonoma Starting problems

316 messages,  Last post on Jun 17, 2013 at 5:59 PM

You are in the Chevrolet S-10 & GMC S15 Sonoma Forum.

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

Messages Page 27 of 32

#259 of 316 Re: s10 starter problems [bigchuck2] by brunorex

Nov 11, 2010 (5:58 pm)

Replying to: bigchuck2 (Nov 11, 2010 4:39 pm)
Just learned that one the hard way. Anyway here is my experience after having a friend change my clutch and had two starters go out. Check or have transmission shims checked. If transmission mount has busted or shifted or shim is gone (mechanic said they are touchy on S-10) then starter misaligns with the flywheel. If you are lucky it breaks the teeth on the starter - if unlucky it breaks the teeth on the flywheel. May be the problem you are having.

#260 of 316 HELP ME PLEASE by landstard

Nov 26, 2010 (8:32 am)

I have a 2002 Chevy S-10 V6 vortec 4.3. I drive it every day and on occasion it does not want to start. It turns over but will not start. I just recently had the fuel pump with sending unit changed out. I have noticed that the security light starts flashing when it will not start. It comes on sometime when I am driving down the road. Any ideas? I am at a loss.

#261 of 316 Re: starting issues 99 s10 [rnorling] by landstard

Nov 26, 2010 (8:37 am)

Replying to: rnorling (Feb 22, 2010 12:21 pm)
where would i find a pass alarm bypass and how does it hook in?

#262 of 316 Re: HELP ME PLEASE [landstard] by gonogo

Nov 26, 2010 (9:09 am)

Replying to: landstard (Nov 26, 2010 8:32 am)
Best I can do is give you this link, it's all in there.
 
http://www.automotiveforums.com/vbulletin/showthread.php?t=454520

#263 of 316 93 s10 2.8 sometimes doesn't start by jokesonspokes

Nov 30, 2010 (6:02 pm)

Hey everyone i have a 93 2.8 that i got several months ago and i've been restoring it to a daily driver. Everything was great until a few days ago i drove about 25 miles out of town, turned the truck off for about 20 minutes and when i got back the truck started but sputtered to a halt. 5 minutes later it starts up but has a terrible time doing so and its happened once more since then. i just replace the ignition coil, ignition module, fuel pump, injectors, fuel filter idle air control valve, and the fuel pressure regulator. any ideas? it feels to me like vapor lock but its an electric fuel pump!
 
Thanks!
 
Chris

#264 of 316 Re: 93 s10 2.8 sometimes doesn't start [jokesonspokes] by brunorex

Nov 30, 2010 (9:52 pm)

Replying to: jokesonspokes (Nov 30, 2010 6:02 pm)
I had a similar problem that turned out to be a flat spot on the fuel pump (inside fuel tank)
good luck

#265 of 316 91 sonoma by blee1250

Mar 01, 2011 (1:22 pm)

my truck has a lil problem it starts fine and then if i drive it for over ten mins say stop ans wawa and when i come out n try to start it it will just crank untill i hold the gas all the was down then it will start but studder and then after a min of holding the gas it will calm down n run good...but if i drive it and park it then wait like a hour or more it will start no problem???i dont get it

#266 of 316 Re: 91 sonoma [blee1250] by brunorex

Mar 01, 2011 (3:37 pm)

Replying to: blee1250 (Mar 01, 2011 1:22 pm)
My S-10 (97) had the exact same symptom. It was the fuel pump. Garage will have a tester that will actually show the problem on a electrical wave. Hope that helps. New fuel pump was installed two years ago and it fires first time every time no matter how long it has been druven.

#267 of 316 Re: 91 sonoma [blee1250] by jokesonspokes

Mar 01, 2011 (4:44 pm)

Replying to: blee1250 (Mar 01, 2011 1:22 pm)
Hey blee, i was wondering what motor your sonoma has (engine code will help)? I've had similar experiences with my 93 s-10 2.8 V6 TBI but there is a good chance we have different motors. I would test the fuel pressure, also when it doesn't start up try starting in clear flood mode (hold gas petal at more than 90% wide open when you crank it) if its flooded it should start right up. If this is the case you could have leaky injectors (assuming you have a tbi) fuel pressure regulator, fuel pump, fuel filter, so on and so forth. There are quite a few things than can attribute to this problem. Maybe start with some basics like cleaning your EGR valve and o2 sensor. Or just start replacing sensors all together. It took me a while to get my truck running perfect and a little more information would give me a better idea of what you should be looking to clean or replace.
 
Hope i can help
 
Chris

#268 of 316 Re: 91 sonoma [jokesonspokes] by blee1250

Mar 02, 2011 (4:21 pm)

Replying to: jokesonspokes (Mar 01, 2011 4:44 pm)
yeah i have the 2.5 4cyl and if i drive it then when i go to start it again and if i press the gas pedal to the floor then yeah it will studder for a min then run smooth...and thats only hot start cold start it is no problem as if i waited a hour to try n start it again

Messages Page 27 of 32

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