I don't have the get up and go like I used to

Asked by Sep 11, 2017 at 08:58 PM about the 2004 Chevrolet Tahoe LT

Question type: Maintenance & Repair

Hi guys I got a 2004 tahoe lately it's been given a
weird shifting problem like it shifts but hesitates
sometimes I can take of slow and it's fine one
minute the next its like it takes a quick sec to shift
and unless i step on it from a dead stop I don't got
the power of take off like I used to I need help fast I
know I need 2 O2 sensors and I have a small
nocking on my left side of my 5.3 help please

1 Answer

105,265

It could be a transmission internal pressure problem, but I'm thinking it's the computer retarding the timing cause it's picking up what it thinks is an engine ping due to the knock you have, the computer will retard the timing down to zero trying to make the knock go away, as it won't the timing just stays low. A live data scan would most likely verify this. So get the knock fixed first then see if performance improves.

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