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

91,005

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.

91,005

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.

91,005

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

Add photo

Related Questions

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 27,581 nationwide Tahoe listings starting at $1,500.

ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 Tom Demyan
Tom Demyan
Reputation 770
#2 Rowefast
Rowefast
Reputation 750
#3 Lucia Taylor
Lucia Taylor
Reputation 450
View All

Related Models For Sale

Used GMC Yukon
349 Great Deals out of 17,286 listings starting at $2,500
Used Chevrolet Suburban
349 Great Deals out of 19,118 listings starting at $1,350
Used Cadillac Escalade
227 Great Deals out of 11,031 listings starting at $3,000
Used Chevrolet Silverado 1500
1,752 Great Deals out of 170,134 listings starting at $1,800
Used Ford Expedition
394 Great Deals out of 25,341 listings starting at $1,750
Used Ford Explorer
835 Great Deals out of 75,042 listings starting at $1,200
Used Ford F-150
2,251 Great Deals out of 209,704 listings starting at $1,499
Used Toyota 4Runner
279 Great Deals out of 20,895 listings starting at $1,995
Used Jeep Grand Cherokee
1,041 Great Deals out of 74,229 listings starting at $950
Used GMC Yukon XL
263 Great Deals out of 12,158 listings starting at $1,999
Used Dodge Durango
265 Great Deals out of 23,164 listings starting at $1,500
Used GMC Sierra 1500
795 Great Deals out of 67,170 listings starting at $2,700
Used Nissan Armada
121 Great Deals out of 8,996 listings starting at $2,500

Used Cars For Sale

2017 Chevrolet Tahoe LT 4WD For Sale
3 Great Deals out of 3,226 listings starting at $44,983
2016 Chevrolet Tahoe LT 4WD For Sale
27 Great Deals out of 888 listings starting at $37,717
2015 Chevrolet Tahoe LT 4WD For Sale
5 Great Deals out of 624 listings starting at $28,500
2014 Chevrolet Tahoe LT 4WD For Sale
7 Great Deals out of 216 listings starting at $20,000
2013 Chevrolet Tahoe LT 4WD For Sale
10 Great Deals out of 466 listings starting at $15,902