4.2L Throttle Body Replacement relearn?

Yes you would and should disconnect the battery ,but I would try cleaning it real good and ;put it back on an try it 1st!

Loverotties said:

Yes you would and should disconnect the battery ,but I would try cleaning it real good and ;put it back on an try it 1st!

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Thanks, Loverotties... I have cleaned it myself and had it professionally cleaned, but the problem was actually diagnosed as a fault in the interior wiring of the throttle body.

I just wanted to know if I can replace the unit and run with it or if it really needs any dealer programming. Can you confirm that the battery unhook and hook up will be good enough?

Not 100% sure,but I say just a battery disconnect learn is all you need!

4.2 throttle body relearn

I have changed my tb for a new one did not need to do a relearn. That price seems a little high check online maybe rockauto and put it in yourself

edwin said:

.....That price seems a little high check online maybe rockauto and put it in yourself

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Agreed...price is way high.

RockAuto has it for $251 plus shipping, but you can also use the 5% off discount code (current code #79531553023843 is good until tomorrow 3/4/12)

petevw said:

Agreed...price is way high.

RockAuto has it for $251 plus shipping, but you can also use the 5% off discount code (current code #79531553023843 is good until tomorrow 3/4/12)

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Thanks, petevw... did you find the TB under the 4.2L or 5.3L or is there no difference between the two. I have a 4.2L and want to be sure that whatever I get works.

No relearn needed. Just replaced mine with a ported unit and all I did was disconnect the battery while installing it and left it disconnected for 30 minutes total time. That price is ridiculous, I paid a net of $235 for a brand new unit ported and shipped from supermodulation.

bkile83 said:

Thanks, petevw... did you find the TB under the 4.2L or 5.3L or is there no difference between the two. I have a 4.2L and want to be sure that whatever I get works.

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That was the price for the 4.2.

How to you do the relearn once you replace the throttle body?

There is no relearn needed. Just disconnect the battery when you start the job and reconnect when you are done. Everything will be golden from there.