20 Most Recent 2007 Chevrolet Avalanche LTZ - Page 3 Questions & Answers

Probably no fuel pressure. Have pump pressure checked.

Do you happpen to know what sensor. It has a lot of them. Have you had it scanned? Autozone will do this for free

Never heard of the converter being the issue. The system can be tested with the correct scanner, was that done. Do you have a loss of power of feels sluggish up hills or wnen accerating hard?

If you have a cable throttle then not likely, if you look at your throttle body and it is electronic then it could be the throttle body position sensor or possibly the accelerator pedal sensor. Are the any DTC codes present on your truck (check engine lights) cause both of these issues have sensors the will most likely trigger a code light on the dash. If not light comes on I would have it scanned just to make sure it doesn't have any codes stored in memory

Under hood fuse box.