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Chevy S10 - GMC S15 and Sonoma Engine and Underhood Problems

364 messages,  Last post on Nov 27, 2009 at 12:19 PM

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#332 of 364 92 Chevy S-10 won't shut off by gilmii Apr 22, 2009 (8:16 am)
Just picked up this S-10 guy said only problem with it is that it doesn't shut off, you have to pop the clutch then disconnect the battery cause the key won't turn anything off just on. I am thinking that its the ignition switch but the seller said its the linkage is outta wack. Just looking to see it anyone has any info they can lend me or at least point me in the right direction. Thanks Dan
#333 of 364 1993 S-10 Pick Up Rough Idle by xxmjjxx Jun 15, 2009 (2:18 pm)
#334 of 364 1993 S-10 Pick Up Rough Idle by xxmjjxx Jun 15, 2009 (2:18 pm)
The intake is the TBI setup I think; looks like a carburetor with two direct injectors. If the truck has been sitting the check engine light goes on, but once warmed up it turns off. In park or neutral it idles ok with a bit of a miss, but in gear with brake pedal pressure it idles very rough. The stored codes read MAP sensor, and ESC/Electronic Spark Control. The truck runs great when traveling at any speed, with no hesitation or stumbling. My friend let me install a new MAP Sensor to see if it would help solve the issue, it did not. I also replaced the spark plugs and seen a minor improvement when gapped at .35 (old plugs gapped at .47). Please let me know what logical issues this could be before I go on a spending spree of sensors and what not.
#335 of 364 2001 Sonoma SLS - hot weather, loss of power by glen14 Jun 22, 2009 (5:57 am)
#336 of 364 2001 Sonoma SLS - hot weather, loss of power by glen14 Jun 22, 2009 (5:57 am)
Hi Guys. I've seen some very similar issues posted, but just not quite my truck's problem, nor have a seen a definitive answer posted.   But anyway, I dread it that in hot weather (never a problem in other seasons), I will be at a stop sign or light; I may often hear the engine racing, so to speak - then when I attempt to pull away, I have a complete loss of power. Not a stall, but nothing when I put my feet on the gas pedal. It is a nightmare. People honk at me, and I create a hazard. I know from experience what to do: quickly as I can switch off the ignition, and re-start, fiddling with the key (and my steering column often locks). I then get it going, hear the engine race again, and hold clutch at half way, with gas pedal down, and I get out of there. Talk about stressful?   During these episodes, or prior, I may or may not get engine warning light: "service engine soon." But oil pressure and temperature read normal.   I should say also that I virtually have no AC in the truck. It's never been great, and I've had it serviced once with little or no long lasting benefit.   Otherwise, I love the truck, have sunk in a thousand dollars recently into it, between brakes and tires. So I'm inclined to want to get this thing remedied once and for all, but if it means major cash, I might just have to trade it in. Don't feel comfortable selling it privately, with this known problem.   Any ideas? Someone who drove it mentioned air intake as a source of the issue, but I have no clue.   And does anyone feel as if I'm better getting myself fixed up with another truck (any good deals out there?). I'm moving to Atlanta in the next month, hotter weather, and I'm at decision point. Would ideally like to keep the truck and not fork out for another - but it might be more hassle and a false economy in light of this horrible issue.   Any thoughts, greatly appreciated. THANKS.
#337 of 364 S10 87 2.8 4x4 5speed by rickb5 Jul 04, 2009 (12:48 pm)
Replaced lower manifold gasket, now it won't start, since then, replace fuel pump, coil, and many other parts. would like some help. Thanks Rick Replies to this message: gonogo (Jul 05, 2009 6:41 am)
#338 of 364 Re: S10 87 2.8 4x4 5speed [rickb5] by gonogo Jul 05, 2009 (6:41 am)
Replying to: rickb5 (Jul 04, 2009 12:48 pm) You need to trouble shoot, have you lost fuel or spark, you need to check it out. Throwing parts at it can get expensive. If it ran before you replace the gasket, check all electrical plugs and grounds for proper hook up.
#339 of 364 Re: ...oscillating whine, or buzzing sound ...... [2002sonoma] by rtdmn92 Jul 11, 2009 (9:33 am)
Replying to: 2002sonoma (Apr 14, 2008 5:25 pm) Hi, I have been having the same problem with the same truck. If you do get this fixed please let me know what it was. Thanks.
#340 of 364 1998 S10 no-start by fws4 Jul 13, 2009 (11:12 am)
My 98 S10 2.2 2WD lost its drive belt with resultant loss of power steering. My son was driving and was only 3 miles or so from home, so drove it home. In the driveway, it was overheating but not horribly (220-230 on gauge). I did not hear it running, so unsure of taps, clanks, etc. Got new belt and it cranks but it will not start even with starter fluid. Good spark on all 4 plugs. Have fuel pressure of 44-45 psi on the fuel rail. Compression is only 30-40 in front 3 cylinders, 90 in rear cylinder. Comp. improves to about 60 in front 3 after I add a few squirts of oil in the spark plug holes, rear cylinder stays 90-100. All valves & lifters working when I took off the valve cover. Can my timing be thrown by the belt loss, resulting in valve bend/damage? Ran well prior to this, no speedster but dependable. Just rebuilt my wifes jetta after bad timing belt caused valve damage and don't want to do it again on this one. I'm not great at evaluating compression readings, how do you tell if it's valves or rings leaking? Thanks for your help, this site is incredible!    FWS4 Replies to this message: gonogo (Jul 14, 2009 5:56 am) mickeymouse2 (Jul 14, 2009 11:08 am) gonogo (Jul 15, 2009 2:37 pm)
#341 of 364 Re: 1998 S10 no-start [fws4] by gonogo Jul 14, 2009 (5:56 am)
Replying to: fws4 (Jul 13, 2009 11:12 am) From reading your message it got a lot hotter than 230 F, most likely got hot enough to take the temper out of the piston rings. The belt runs the water pump, a tow would have been cheaper, sorry.

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