20 Most Recent 2002 GMC Sierra 2500HD - Page 5 Questions & Answers

Hello: There are two knock sensors under the intake manifold on top of the engine. Replace them both.

Check to ensure your glow plugs are functioning properly.

Is the truck blowing a lot of white smoke during idle or initial start up? If so, you most likely have injectors that are not performing correctly, not allowing vehicle to start.

Russ

REPLACE AIR FILTER, CLEAN FUEL INJECTORS,TRANSMISSION COULD NEED FLUID AND FILTER CHANGE. TRANSMISSION COULD BE SLIPPING, TRANSMISSION TORQUE CONVERTER NOT LOCKING UP OVER DRIVE TRANSMISSION TORQUE CONVERTER FREE WHEELING.WHEN YOU DO FLUID AND FILTER CHANGE DONT OVER FILL TRANSMISSION BUT ADD SOME TRANSMISSION ADDITIVE WITH TRANSMISSION FLUID TO FREE UP STUCK TRANSMISSION SHIFT VALVES.

Hello raygozza: My name is Roger and I will help you. Try adding 5 more qts. of oil. The 6.6 duromax holds 10 qts. of oil. thanks for using Fix Ya. Roger

first step is to pop out trim then you have to remove ALOT of screws.
go buy a repair book for twenty bucks to save yourself time

Hello
This problem is caused by a defective instrument cluster and it must be send out for updated parts and repair of defects in the design. Although the instrument cluster in this truck uses what looks like analog instruments it is actually digitally controlled by a small computer inside the cluster assembly, this same computer it seems sends the signal to the cruise control as well, so if the speedometer needle is getting a faulty signal then the cruise will act up as well. There are many places on the Internet that can do this repair, you are not stuck with the dealer who will 2X the cost of the repair of the cluster to you (capitalization in all it glory). These companies will send a special box to ship the cluster in and provide full instructions on removal.
Below is one such link to a cluster repair service, give them a call about your particular problem.

http://www.instrumentclusters.com/

check your belt.if ok,take belt off and check power steering pump shaft is broke

Sounds like the fluid level is too high. Look at the cap it has a level incator on it, the proper level is on the lower part of it, it also has a cold level mark [ the fluid expands when hot ]. Remove some fluid to meet the proper level, a turkey baster works good.