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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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#68 of 168
97 s-10 cutting out at constant speed...HELP by taewa
May 14, 2007 (12:43 pm)
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#69 of 168
97 s-10 cutting out at constant speed...HELP by taewa
Jan 19, 2007 (4:56 pm)
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I have a 1997 Chevrolet s-10 (s10) 2wd ext. cab w/ the 4.3L V6 vortec engine and manual transmission. It has about 125K miles on it. The truck starts easily, but it CUTS OUT WHEN DRIVING AT CONSTANT SPEEDS.
 
It seems fine during acceleration and at idle, other than SOME CLANKING SOUNDS AT IDLE (not sure if this has anything to do with the problem or not), but as soon as I try to maintain a constant speed, it starts to hiccup every couple seconds. I am not experienced in auto repair, but research points me towards fuel pump and/or filter. Is there a way to diagnose this without fancy tools? A fuel pump is a lot more to replace than just the filter, so is there a way to differentiate which might be bad, if either? Other ideas???
 
Thanks so much.
#70 of 168
Re: 97 s-10 cutting out at constant speed...HELP [taewa] by hoodlatch
Jan 19, 2007 (7:05 pm)
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Replying to: taewa (Jan 19, 2007 4:56 pm)

Have you change locations where you fuel up lately? Maybe your getting some bad fuel. Before you spend alot of bucks on parts and repairs you might try a bottle of injector cleaner to see if it helps any.
Good luck
#71 of 168
Re: 97 s-10 cutting out at constant speed...HELP [hoodlatch] by taewa
Jan 20, 2007 (9:03 am)
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Replying to: hoodlatch (Jan 19, 2007 7:05 pm)

The problem has been persistent for a couple of months now. I don't think it is the type of gas, as I always get 87 octane, and I fill up at different spots all the time. Maybe I'll try a bottle of the injector cleaner, but I don't read very many strong "testimonials" of that type of product. Anyone out there seen it make a big difference? I am going to check out Haynes manual today and see if I can't figure something out with fuel system as well.
#72 of 168
Re: 97 s-10 cutting out at constant speed...HELP [taewa] by wmcksmith
Mar 25, 2007 (9:17 am)
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Replying to: taewa (Jan 20, 2007 9:03 am)

I have a 2003 s10 and i have found that putting higher octane gas in my truck will stop some vibrating. I would also suggest a good injecter cleaner (Lucas)
#73 of 168
Re: 97 s-10 cutting out at constant speed...HELP [taewa] by mschul
Apr 19, 2007 (8:43 am)
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Replying to: taewa (Jan 19, 2007 4:56 pm)

More then likely your problem is your catalytic converter. the baffling inside has come loose and causes the rattling and then causes the cat to clog... I had this same problem...what i did was just take the CAT off and break all the baffling up and make it a straight pipe basically. I dont recommend this to everyone due to emmissions checks in some states like california, but i am in texas where it isnt checked. Some people also says its gives a little better horse power boost aswell as better gas mileage. but your problem is your CAT.
#74 of 168
Re: 97 s-10 cutting out at constant speed...HELP [mschul] by taewa
Apr 19, 2007 (5:25 pm)
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Replying to: mschul (Apr 19, 2007 8:43 am)

Thanks for the suggestion. I have the same suspicion, as my friend and I were banging on the CAT, and we could hear it moving around. We thought about removing it, but wouldn't that set off the rear O-2 sensor or any other kind of computer check?
#76 of 168
cutting out by wookie1
Jul 25, 2007 (10:35 am)
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#77 of 168
cutting out by wookie1
Jul 25, 2007 (10:35 am)
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i have a 96 s10 with a 4.3L engine i just replaced the map sensor the problem i have is when i try driving it the engine starts cutting out bad but runs great at an idle i can unplug the map sensor and drive it anywhere without any problems and when i plug the map sensor in and unplug the oxygen sensor it has to warm up before it runs ok it starts cutting out bad until it's warm the first time i had a problem it was the harness that plugs into the intake but thats no longer the issue. anyone have any suggestions on what is causing my problems?
would apriciate any help

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