Question about 2002 Chevrolet Silverado

1 Answer

Just bought a 2002 2500HD w/ the 8.1L vortec and allison transmission. Got a great deal on it but i have a few issues to deal with. Hoping i can get some info on repair costs and or info on the problems, 1) the abs brakes kick on at around 5mph when braking. I know there was a gm recall on this issue 2) exhaust manifold leak 3) passenger side window regulator Mike

Posted by on


1 Answer

Mike--you should do all the work yourself,then it will be done correctly

Get the ABS Code, from a code reader at parts store--You can replace the Wheel Speed Sensor,if you know which one failed.
Exhaust won't be fun,but it is, what it is.
The inner door panel comes off,and you install a new regulator,common lately on all veh. (Wear long sleeve shirt with heat shield sleeves on top,gloves as much as possible,keep cuts to minimum)

You WILL be flushing brake fluid,power steering,changing trans,transfer,axles,coolant,.May NEVER have been done,RIGHT

Posted on Oct 01, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Is there a trick to installing torque converter on 2004.5 Allison 1000 transmission?

I don't know a "trick" but there are some youtube videos regarding allison transmissions.

Dec 06, 2016 | Cars & Trucks

1 Answer

Where is the speed sensors located on a 2001 Tahoe

Vehicle Speed Sensor (VSS) - Allison
On the left side of the transmission
Automatic Transmission Electronic Component Views in Automatic Transmission - Allison
Automatic Transmission Inline Harness Connector End View in Automatic Transmission - Allison
Vehicle Speed Sensor (VSS) - 4L60-E
On the left side of the transmission
Automatic Transmission Electronic Component Views in Automatic Transmission - 4L60-E
Automatic Transmission Related Connector End Views in Automatic Transmission - 4L60-E
Vehicle Speed Sensor (VSS) - 4L80-E
On the left side of the transmission
Automatic Transmission Electronic Component Views in Automatic Transmission - 4L80-E
Automatic Transmission Related Connector End Views in Automatic Transmission - 4L80-E
Vehicle Speed Sensor (VSS) - Transfer Case
On the top left side of the transfer case
Transfer Case Control Component Views in Transfer Case - NVG 246 - NP8 (Two Speed Automatic)
Transfer Case Control Connector End Views in Transfer Case - NVG 246 - NP8 (Two Speed Automatic)
Vehicle Speed Sensor (VSS) Adapter (4WD Only) - 4.8L,5.3L,6.0L
On the left side of the transmission
Engine Controls Component Views in Engine Controls - 4.8L,5.3L,6.0L
Engine Controls Connector End Views in Engine Controls - 4.8L,5.3L,6.0L
Vehicle Speed Sensor (VSS) Adapter (4WD Only) - 8.1L
On the left side of the transmission

Mar 07, 2016 | Cars & Trucks

1 Answer

Allison transmission wouldn't shift down after I got off of interstate. after truck cooled off it started shifting again. temp was fine when trouble started. can the transfer case pump rub issue cause...

No the transfer case fluid is separate from the transmission. Transmission has entered hot mode check for restricted oil cooler. This can be easily diagnosed with a scan tool that can read transmission data.

Oct 28, 2013 | 2002 Chevrolet Silverado 2500HD

1 Answer

Problem with a 2003 Dodge Ram, fault codes indicate a transmission Malfuncting.Tcm scan reveals pressure switch open or closed at wrong time.

Transmission solenoids are usually installed in a transmission valve body, Transmission Control Unit, or transmission control module. If you have a question about a specific Allison Transmission model, you should call Allison Transmission Here is the number for the Texas Distribution office 214-631-5370-----------------------------------------------------------------------------
vas 5054a

Nov 28, 2012 | Cars & Trucks

1 Answer

My 2003 Chev 2500 HD w/ Allison transmission having battery problems. The truck has two batteries. Replaced the first one yesterday when the truck would not start. Drove two hours home, and the second...

normal ,it could be as simple as yes old battery,but when you are dealing with two batterys charging you must have a deisel motor and their is a alternator that could be over charging or bad diode.if voltage regulator was the prob . you would have prob. whith new battery also

Jul 25, 2011 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

Will a transmission from 2003 duramax fit in a 2004 duramax?

They will deefinitely providing the 2 are the same model. In 2004 the Allison tranny was available in a 5 or a 6 speed. Before 2004 only the 5 speed was used. If one is changed for the other there will be shifting issues and codes set in both the ECM (engine control computer) and TCM (transmission control computer). Make sure you are putting in a 5 speed Allison tranny.

Jan 29, 2011 | GMC Sierra Cars & Trucks

1 Answer

01 duramax allison changed fluid and filters now in limp mode

Make sure you have the proper amount of tranny fluild in it and get that Valvoline fluid out of it. Allison transmissons have there own type of tranny fluid and you want to use it. You can buy the right stuff from a Allison dealer. Most Detroit Diesel dealers are also Allison dealers. Look them up in your phone book and they will tell you the quanity and sell you five gallon pails of the fluid. Just get the serial number off of the side of the transmisson before you call. Change the fliters again too. Believe me, this is important. My company has Yard horses with Allison transmissions and you don't want to screw with the small stuff. Service them right and they work as hard as you want.

Aug 01, 2009 | 2002 Chevrolet Silverado

Not finding what you are looking for?
2002 Chevrolet Silverado Logo

501 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides