P0502 issue on 2002 Chevy silverado 1500HD

10

Asked by Matt Nov 11, 2020 at 12:30 AM about the 2002 Chevrolet Silverado 2500HD LS Crew Cab 4WD

Question type: Maintenance & Repair

So I have replaced all the speed sensors on the transfer case itself. No luck.
However when i pulled the old sensors i noticed the face of the sensor had
some significant wear on it. I shined my camera light into the T case and
noticed a little wear on the reluctant gear. some days it will get speed
readings but once it shifts into 2nd hard i lose the speed readings. Could
faulty wiring be the case? or sensors on my 4L80e?

3 Answers

3,240

Cant say the sensor wasn't making a connection lol, anyways, yes, a bad wire is 1 possible cause. Here's a list of other possibilities.

1 people found this helpful.
10

It’s very strange what’s going on. It seemed to fix itself over night. Drove it to work without any issues and didn’t throw the code. I’m assuming a connection or wire somewhere may be the culprit

Your Answer:

Silverado 2500HD

Looking for a Used Silverado 2500HD in your area?

CarGurus has 1,611 nationwide Silverado 2500HD listings starting at $8,999.

Postal Code:

CarGurus Experts

  • #1
    GuruXPQGJ
    Reputation
    1,430
  • #2
    Reelin68
    Reputation
    1,190
  • #3
    Steven Loeffler
    Reputation
    1,150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 2500HD
27 Great Deals out of 2,111 listings starting at $8,490
Used Chevrolet Silverado 1500
176 Great Deals out of 7,546 listings starting at $7,777
Used Ford F-250 Super Duty
34 Great Deals out of 777 listings starting at $2,890
Used Dodge RAM 2500
25 listings starting at $7,900
Used GMC Sierra 1500
127 Great Deals out of 7,869 listings starting at $5,500
Used Ford F-150
311 Great Deals out of 13,471 listings starting at $4,888
Used Toyota Tundra
35 Great Deals out of 938 listings starting at $10,698
Used Ford F-350 Super Duty
52 Great Deals out of 1,448 listings starting at $7,000
Used Chevrolet Tahoe
20 Great Deals out of 774 listings starting at $7,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.