I have '03 Tahoe it idles fine but shuts off in gear

Asked by Feb 10, 2016 at 05:07 PM about the 2003 Chevrolet Tahoe LT 4WD

Question type: Maintenance & Repair

Just changed alternator after car shut off on me
while driving and DIC said battery not charging.
After replacing alternator car will not load CD or
stay running after depressing brake pedal. I'm going
to change pcv valve but do you have any ideas?
Help!!!

6 Answers

98,365

Did you disconnect the battery when replacing the alternator? If so then you will have to take it to a dealer and have it reflashed due to loss of voltage. There is a little tool that is used when disconnecting the battery that maintains all of the vehicles factory presets and owners settings. I don't know if that information is in your owners manual, but I did find it in mine for a 05 Yukon. You can try starting it in neutral and see if it will drive to the dealer, if it does then the performance will be low.

I just changed mass air flow sensor. No help there either. I do have a manual, but I don't know where reset button is. I checked everywhere for vacuum leaks. Found 0. This truck only shuts off when warm and you apply the brake. Oh and while changing alternator the battery was disconnected. Please help. Don't want send to a garage and get charged a zillion dollars that I don't have. Truck was running fine , except recent antifreeze leak that's not present on the ground. New battery new alternator new mass air flow sensor new serpentine belt.

98,365

There is no reset button. Try pinching off the brake booster vacuum line and then try it, if it doesn't die then check the little check valve where the booster vacuum supply line is connected it could be flowing continuously. Do you hear any vacuum leaks inside the vehicle like down around where the steering shaft goes through the bulkhead?

@tennisshoes. Try that no good. However when stepping on pedal in park it paused and then sounded like a vacuum leak. Gonna try changing intake hose don't see any leaks but when I pressed gas pedal in park a buddy told me that where sound came from.

@tennisshoes. Do you think it could be the throttle body? I went through every gear w/o truck moving and it finally shut off. Before I would drive it and after warmed up it would shut off while pressing brake. Today I shifted into each gear with out moving a @ each shift idle went down until eventually shutting off. Actually question posed to anyone.

98,365

It is possible, have you cleaned it real good? Also check the connections at the TPS. If you have an ohm meter you may want to test the TPS and make sure there aren't any dead or static zones in the sweep. Just a thought.

Your Answer

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 36,241 nationwide Tahoe listings starting at $1,800.

ZIP:

Chevrolet Tahoe Experts

  • #1
    Tom Demyan
    Reputation
    840
  • #2
    Rowefast
    Reputation
    830
  • #3
    Lucia Taylor
    Reputation
    550
View All

Related Models For Sale

Used GMC Yukon
409 Great Deals out of 20,823 listings starting at $1,495
Used Chevrolet Suburban
286 Great Deals out of 20,238 listings starting at $1,195
Used Cadillac Escalade
223 Great Deals out of 11,032 listings starting at $2,888
Used Chevrolet Silverado 1500
2,151 Great Deals out of 183,297 listings starting at $1,693
Used Ford Expedition
397 Great Deals out of 21,930 listings starting at $1,500
Used Ford Explorer
812 Great Deals out of 62,844 listings starting at $1,495
Used Ford F-150
2,229 Great Deals out of 181,368 listings starting at $1,500
Used Toyota 4Runner
243 Great Deals out of 21,286 listings starting at $1,500
Used Jeep Grand Cherokee
923 Great Deals out of 70,927 listings starting at $995
Used Dodge Durango
291 Great Deals out of 20,261 listings starting at $999
Used GMC Yukon XL
224 Great Deals out of 12,995 listings starting at $1,495
Used GMC Sierra 1500
754 Great Deals out of 68,023 listings starting at $1,699

Used Cars For Sale

2017 Chevrolet Tahoe LT 4WD For Sale
29 Great Deals out of 6,121 listings starting at $41,100
2016 Chevrolet Tahoe LT 4WD For Sale
21 Great Deals out of 467 listings starting at $38,711
2015 Chevrolet Tahoe LT 4WD For Sale
19 Great Deals out of 800 listings starting at $29,700
2014 Chevrolet Tahoe LT 4WD For Sale
8 Great Deals out of 200 listings starting at $24,564
2013 Chevrolet Tahoe LT 4WD For Sale
9 Great Deals out of 394 listings starting at $16,500

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.