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Chevy S10 - GMC S15 and Sonoma Engine and Underhood Issues

363 messages,  Last post on Nov 07, 2009 at 8:24 PM

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

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


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#302 of 363
Re: 2000 S-10 cooling fan [boomerff373] by gonogo
Jul 17, 2008 (8:39 am)
Reply

Replying to: boomerff373 (Jul 16, 2008 1:59 pm)

Well if it is running hot and you don't hear the roar, can't miss it, it's not working. When cold give it a spin by hand with engine off, it should not move much, should have resistance.
#303 of 363
Re: 2000 S-10 cooling fan [gonogo] by boomerff373
Jul 17, 2008 (1:04 pm)
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Replying to: gonogo (Jul 17, 2008 8:39 am)

The water temp runs around 200,doesn't seem to really go down that much. Fan doesn't seem to be engaging and roaring like you said. Also moved the fan when the motor was cold, not much resistance there. Gonna have to replace it. Thanks for you help
#304 of 363
1998 Gmc sonoma clicking by jeff_neufeld
Jul 17, 2008 (6:15 pm)
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Hello i have a 1998 Gmc sonoma, 4wd 4.3 liter, the clicking is kinda coming from under the front of the truck..I was reading about it and a forum said that it could be the oil.In th transfer case. Does anyone know if thats the case? and if so where is the transfer case( i think i know just making sure) and how easy is it to change? it only does it when i accelerate hard...And i dont hear it at high speeds thanks my email is neufeld_jeffreyyahoo.com
 
thanks alot
#305 of 363
s10 backfiring by foxxracer2777
Jul 19, 2008 (2:02 pm)
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my s10 runs smooth after doing plugs wires cap and rotor but once i get higher into rpms it backfires. kindof sounds like a pop. all the wires are good and in correct order. timming is ok. any ideas. please email me them because all this writting on one page hurts my eyes. foxracer2777Yahoo.com
#306 of 363
2000 S-10 4.3 Tune up by boomerff373
Aug 20, 2008 (5:54 pm)
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Getting ready to do a tune up on my 2000 4.3 S-10. Does anybody have any tips that will make it easier to get to the spark plugs. Doesn't seem like its easy to get to them from the top.
#307 of 363
Re: 1999 S-10 4 cylinder surge and hasitiation [mickeymouse2] by sonoma4x4
Aug 21, 2008 (10:02 am)
Reply

Replying to: mickeymouse2 (Jan 13, 2008 7:52 am)

I have a 2002 GMC Sonoma 4X4 crew cab and get the same code (0300) when I drive at 60 on the highway. I have no hesitation at any speed and the truck runs great. Do you think the crank sensor could be the problem? I have replaced the plugs, wires, rotor. cap, distributor, fuel filter, pvc.
#308 of 363
Re: Low RPM engine vibration [bajaracer] by paulbaker
Aug 22, 2008 (1:05 am)
Reply

Replying to: bajaracer (Jun 19, 2008 1:41 pm)

Assuming it is tuned up I would pull the EGR valve and clean the carbon deposits or simply replace also check the rubber hose connections for cracks Especialy the ones going to the egr vaccuum.
#309 of 363
94 s-10 rich exhaust problem by flytesweep
Aug 20, 2008 (7:52 pm)
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Hi,
I have a 94 s-10 4.3 vortec 6cyl. engine. The exhaust is very very noxious. When i start the engine it actually isn't too bad. As it warms up the exhaust gets very rich as if there is alot of unburnt fuel. White smoke comes out of the exhaust .
The truck has been sitting awhile and the gas smelt like varnish at first. The tank sensor is not working but i have gone through the bad gas and have burnt about 2 gallons of fresh fuel.
 
How can i resolve this problem.
#310 of 363
Re: 94 s-10 rich exhaust problem [flytesweep] by gonogo
Aug 23, 2008 (6:18 am)
Reply

Replying to: flytesweep (Aug 20, 2008 7:52 pm)

Well I have read about fuel leakage with the 4.3 CPI system. If you do some googling on the system I think you will get loads of information. I have a 2.2 my self so can't help much.
#311 of 363
Re: 94 s-10 rich exhaust problem [flytesweep] by mickeymouse2
Aug 23, 2008 (7:23 am)
Reply

Replying to: flytesweep (Aug 20, 2008 7:52 pm)

Since your truck has been sitting for a long time. Hook up a fuel pressure guage and turn the key on, engine off. Look for the pressure bleeding off after the initial prime. If it does, you probably have a leaky fuel injecter. When you first turn your key on, the pressure should go up to about 55 psi to 60 psi and hold there. If you are watching the fuel pressure slowly drop off and bleed down below 55 psi within about the first minut, yup. Leaky injector. Pressure regulators rarely fail on your truck. Good luck!

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