Last post on Oct 17, 2006 at 8:12 PM
You are in the Chevrolet S-10 & GMC S15 Sonoma
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Chevrolet S-10, GMC Sonoma, GMC S-15, Truck
Aug 24, 2005 (12:17 pm)
I have a 1990 GMC S-15 extened cab with 4x4, 4speed auto tranny, fully loaded with the all digital dash. It has 95,000 miles on it. Apparently I have a short in the Ac circuit.
Everytime I turn on the AC the fuse blows. I have tried to track it down but to no avail. I was wondering if anyone has any idea where or what the problem is before I go thru and replace the whole circuit. This truck is one of the better trucks i've owned. It does not leak or burn any oil at all. I can step down on the gas and light up the tires with no problem. The engine is completely stock with the exception of an oil cooler. Also I was wondering if anyone knows where i can get a complete wiring diagram just for my truck.
I have a Haynes and a Chilton manuals but there not really as complete as i hoped the would be.
#1024 of 2018 Re: 1995 S10 Ignition Timing [slicksleeve]
Aug 24, 2005 (6:06 pm)
If you look at my post #1009 right before yours, my 87 S-15 had engine surging and idling problems which would go away after I drove for a while also. No engine codes were stored. I just changed my EGR valve and all my problems went away. My old valve, I could blow thru it when closed, even though the diaphram was operating properly. Since it is vacuum operated only(no wires attached), no engine codes were stored.
Something to think about, hope this helps,
#1025 of 2018 Fuel pump diagnosis
Aug 24, 2005 (8:11 pm)
Newbie here so forgive me if this is a common problem.
I have a 2000 4x4 s10 w 4.3 completely stock w/ 86000 miles. It's in very nice condition and I have driven it almost a year with absolutely no problems. Today I got in it cold for first startup of the day and it fired rite up but when I turned the AC on it died. It turns over now but wont start. It may be a coincedence on the AC thing but thats when it died. I dont hear the fuel pump when I turn the key forward so I'm assuming it's the fuel pump.
I have no blown fuses and have power at the fuel pump relay. My question is...is there a trick to check for power at the fuel pump short of dropping the fuel tank or removing the bed?? Like a harness thats accessible or wire or something. I dont want to drop the tank just to find that I have no power. I'll do it if I have to replace the pump but surely there a way to check it before doing all that.
Any help or suggestions are greatly appreciated.
#1026 of 2018 Re: AC and Heater Problem [abnparamouse]
Aug 25, 2005 (4:15 am)
Years ago the fuse on th AC mcomp. (for the clutch) would blow when the Freon was low ... ??/
#1027 of 2018 Re: AC and Heater Problem [abnparamouse]
Aug 25, 2005 (8:25 am)
Unplug the A/C clutch on the compressor, then see if it blows.
#1028 of 2018 Re: AC and Heater Problem [joe3891]
Aug 25, 2005 (10:52 am)
Well, yeah. Although I did not specifically state to disconect it ... I assumed he/she would.. After all, they made sure there was enough light available to see if the fuse was blown ... ;')
#1031 of 2018 Engine stalls under load
Aug 25, 2005 (12:46 pm)
I have a 2001 s-10, 4wd, 58,000 miles. I have changed plugs, wires distributor, oxygen sensors, gas filter and gas, but no luck. Can anyone help???