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Chevy S10 - GMC S15 and Sonoma Warning lights and trouble codes

94 messages,  Last post on Jan 31, 2013 at 1:59 PM

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

What is this discussion about? Chevrolet S-10, Auto Repair, Truck

Messages Page 3 of 10

#21 of 94 ABS 2002 chevy s-10 by dean20

Jul 31, 2006 (4:18 am)

My ABS kicks in without any warning. This has happened in all road and weather conditions. I took it to the dealer and was told that it was in the computer,1000.00 + to have repaired. I then made an appointment and took it back,left it all day,only to return and be told that was not the problem and they where not sure what it was. Anyone else having this happen? Any answers as to what the problem could be?

#22 of 94 speed sensor by goodgod

Aug 16, 2006 (6:21 pm)

I have an 89 GMC S15 that I believe only has rear ABS. My brake light indicator gave me a code 9, which is the speed sensor (not the vehicle speed sensor - code 24). I am unable to locate a pic of the sensor location. I also see no electrical wires to trace anywhere near either of the rear wheels.
My brakes work 100%. I replaced my vacuum booster last weekend because my RPMs increased when I stepped on the brake. I reset the ABS after I was done, but it came back on as soon as I went down the road.
Any help would be appreciated, thanks in advance

#23 of 94 Re: ABS 2002 chevy s-10 [dean20] by tbones2

Dec 28, 2006 (7:53 pm)

Replying to: dean20 (Jul 31, 2006 4:18 am)
i was wondering if you fixed your problem my 97 s10 kicks the abs pump/motor on all the time it is very scary as all stoping is lost can you help me?

#24 of 94 97 s10 abs runs alot by tbones2

Dec 28, 2006 (8:02 pm)

my abs pump/motor turns on alot even when the brake is not being used when this happens the peddle goes to the floor and the truck can not be stopped this is my only vechele to get to work i need help please

#25 of 94 Re: 97 s10 abs runs alot [tbones2] by goodgod

Jan 01, 2007 (10:48 am)

Replying to: tbones2 (Dec 28, 2006 8:02 pm)
We have 2 different problems. I have no consequences with my light, but I still would like to fix it. Also, I think that we have 2 different systems - mine is the old style

#26 of 94 Re: service engine lite..fuel composition circuit high input [binmt] by km59

Feb 12, 2007 (1:35 am)

Replying to: binmt (May 31, 2006 3:49 pm)
Hi,I own a 2001 Chevy S10 ExtCab LS 2WD(2.2L 4cyl)I'm having the same problems except my Fault Codes ARE PO178 AND PO179 , I've cleared the codes but they come right back.Both are Fuel Composition Sensor Circuit High input and low input, I'm going crazy cause i can't pass inspection because of this. The dealership says it will run about $1500 to replace the fuel sensor and clean out my gas tank and replace a new fuel pump in the tank!!!! I don't have that kind of money. I know this is not helping your problem but i was hopeing someone like yourself might have gotten some new info that might help and if you can relay it to me i would be very grateful.

#28 of 94 Re: service engine lite..fuel composition circuit high input [binmt] by km59

Feb 26, 2007 (12:01 am)

Replying to: binmt (May 31, 2006 3:49 pm)
If you already have fixed your problem great, but i had to change out the FCS Which is located on the right front/pass frame rail and behind the fender wheel housing which i had to take out in order to get to the sensor. Also i needed a Fuel Line Disconnect Tool Set i bought at a local auto parts for $8.00 to get the 2 fuel lines off of the old sensor. It only has two bolts and a electical connection you need to unplug to take out, also relieve any fuel pressure before making repair.

#29 of 94 re- unknown engine light by 96sten

Feb 26, 2007 (7:45 pm)

My check engine light came on recently after I replaced the alternator. I don't know if the two are related. My gas cap is on tight, my fuel filter is brand new, new brake pads on the front and all fluids are good. How to diagnose why the *#! light is on?

#30 of 94 Re: re- unknown engine light [96sten] by jneal

Mar 03, 2007 (4:27 pm)

Replying to: 96sten (Feb 26, 2007 7:45 pm)
If the light came on immediately after replacing the alternator I would say they are probably related.
However, no one can guess at what may be causing the light to come on without at least knowing what code is stored. Go by AutoZone and get the code or codes read and come back and post and someone should be able to offer a bit more guidance.

Messages Page 3 of 10

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