Recent content by Rizzoj2000

Does this have something to do with On Star?

I have an 05 TB with 115000 miles. It's a 4.2 6 cyl. Sometimes when starting (cold or warmed up) it spins through its cycle and does not fire. If I spin it again it still won't start. I have to turn the key off and then it will start. Any ideas.

Sorry about that. It's a 4wd. If not a wire problem, is it hard to change and Is there some way to test them it?

I have an 05 TB with 4.2 6 and getting c0055 code (rear speed sensor malfunction). Can anyone tell me where this is located? I appreciate any info. Thanks in advance.

Sorry guys. Fat fingers. I meant PO-420. Response is quick.

I have a 05 TB with a 4.2L 6. 98000 miles. Have been throwing an ineficient cat code for a year and have been reseting it till I have to go through inspection when I planned to replace it. My TB is now running like a dog. With th pedal down I hear intake that sounds like an old Quadrojet 4...

Don't know about dents (I'll check this weekend) and 98000 miles. The up stream (the one at the front of the cat?) always moves up and down, it's the downstream (the one at the end of the cat?) is the one that sometimes rides straight and sometimes rides with the one up front.

Thanks for the info.

I'm sure this topic has been covered but I haven't seen this particular question. I know if the down stream O2 sensor is tracking the upstream its most likely the cat but sometimes when I check the downstream is riding solid and not tracking the upstream. Could there be an intermittent problem...

Is there a place to take a fuel pressure reading in the engine compartment?

That's the only data I get from my scanner. I'm waiting for a wifi obdii dongle so I can run Dashcommand.

Firstly I want to apologize for starting another of the 171 threads. Vehicle has been running great for 2 weeks no codes since I changed the secondary oar check valve. Last night come to a light and feel the idle surge. Looked at the tach and revs stuck on 1000. A couple seconds later motor...

Thanks for the info guys.

Thanks for the quick come back. I think I'll stick with the AC-Delco. Joe

04 TB. Are both Oxygen sensors on this vehicle the same part number? should I stick with GM or are Bosch ok?