Last post on Oct 17, 2006 at 9:34 PM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck
#5261 of 5688 Re: 2001 GMC Sierra 1500 X-Cab 4.8 Li 4x4 [whiteknight]
Oct 22, 2005 (8:07 pm)
I would initially look at the pads/rotors. I've had a lot of problems with the brakes on my '03 and the final cure seems to be all new aftermarket pads/rotors. The OEM pads have done nothing but glaze up and the rotors have corroded very badly. My pedal always felt mushy and the only time the brakes actually felt decent was if the pedal was pegged to the floor. Around 7k miles it was getting very bad and I complained to the dealer. They resurfaced all the rotors and gave me new pads. The truck stopped ok for a couple weeks, but the pedal still felt like mush. It has gotten worse since then and I again complained at 20k miles. They offered to give me all new pads/rotors, but would only use OEM pars. I passed. I bought aftermarket pads/rotors. So far it feels like a normal vehicle for the first time ever. The pads I removed were terrible looking, totally glazed over and the rotors were rusted up bad, there was about 1" of shiny metal where the pads were grabbing. At least take a look, I've heard a lot of folks saying the rotors on these rust up and drasically reduce the braking on these trucks. I don't know why mine were so bad, maybe because I don't drive it all that much.
Oct 23, 2005 (8:16 pm)
What is the easiest way to flush out the dex-cool?
#5263 of 5688 Re: 2001 GMC Sierra 1500 X-Cab 4.8 Li 4x4 [whiteknight]
Oct 24, 2005 (8:47 am)
There has been a recall issued for the brake sensors causing the very problem your experiencing. Call GM customer service hotline # (in your owners manual). If you bought the truck used they may not have a way of contacting you regarding this recall.
#5264 of 5688 Re: 2001 GMC Sierra 1500 X-Cab 4.8 Li 4x4 [rayt2]
Oct 24, 2005 (3:54 pm)
Thank you for the info I'll be calling the dealer in the near future to have info on this recall. Talk to you later too let you know if this solved my problem
#5265 of 5688 Dex-cool? by mailman2
Oct 24, 2005 (8:16 pm)
Keep the dex cool - no reason to change - I always wonder why people think they know more than the people that designed the vehicle - but I see it all the time
Like saying you should run 10W40 oil (rather than 5W30)
Burn premium gas to get better power.
Just use what the owners manual calls for -
#5266 of 5688 Re: Dex-cool? by mailman2 [z71bill]
Oct 26, 2005 (5:49 pm)
Keep the Dex-Cool?
"I always wonder why ..."
GM Under Leagl FIre for Dex-Cool Related Problems:
There are now at least eight states in which Dex-Cool related Class Action Lawsuit has been filed: Missouri, California, New York, New Jersey, Texas, Illinois, Pennsylvania,
and Michigan. Defendents include GM, ChevronTexaco and Equilon-Shell.
The lawsuits allege that Dex-Cool forms a sludge-like substance in these vehicles which clogs cooling systems, causing them to overheat, and that Dex-Cool corrodes all parts of the engine it comes in contact with including the upper and lower intake manifold gaskets. The suits further alleges that Dex-Cool not only does not perform as promised, but also causes premature and costly engine repairs to consumers' vehicles.
Give me the green stuff, any day.
Oct 30, 2005 (7:17 am)
What's curious, assuming the legitimacy of the claim, is why doesn't Dex-Cool effect all engines the same way. After 70K miles I've never seen my truck deviate from 205 deg. once it reaches that temperature, even on the hottest days here in the Mojave. In fact, I can't recall anything at all about overheating problems here at Edmunds, certainly nothing like the chatter about CSK.
BTW - Back in 2002 there was a procedure used by GM Service addressing CSK involving the use of GM Top Engine Cleaner #1050002. Does anyone have any information about? I can't find anything in the Service Manual.
#5268 of 5688 Dex-Cool by noobie1
Oct 30, 2005 (7:40 am)
Dex cool did have some issues back in 1997-1998 - if a small leak developed in the cooling system the coolant would turn to jello. It is my understanding that those issue were solved years ago. If they were not solved you would see thousands of complaints (here on Edmunds) about it - I have over 200K on 3 different vehicles using Dex and have never had any issues.
The CSK - Top Engine Cleaner #1050002 issue was done to clean the carbon out of the cylinder - it did in fact solve problem for a few thousand miles - but it would just come back - so GM stopped doing it -
I think they took the plugs out - put a squirt of this cleaner in each cylinder turned the engine over a few times - let is soak over night - then started and ran the engine for 15 minutes - then changed the oil.
#5269 of 5688 Re: Dex-Cool by noobie1 [z71bill]
Oct 30, 2005 (6:54 pm)
Thanks for the help. Mine's sounding more like a diesel every day. Next oil change I think I'll give it a try.
#5270 of 5688 Re: 2001 GMC Sierra 1500 X-Cab 4.8 Li 4x4 [sebring95]
Nov 01, 2005 (6:19 pm)
What kind of aftermarket breaks and roters did you go with?