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INTAKE MANIFOLD!!!!!

CODE P0139 SOLVED!!!! LOOSE MANIFOLD BOLTS!!! THANKS TO YOU GUYS WHO SUGGESTED THIS!!! After local repair shop, replaced two o2 sensors-$400. Local dealer could'nt find -$100' Tune shop couldn't find - $100. With my handy dandy 10mm socket, all bolts took 1/4 turn. Right front bolt took two...

How hard is it to remove and clean the MAS?

I erased the fault message and filled up with Shell premium. Ten miles later, the check engine light came back on. Back to ground zero!

Got a cool scanner, So far every time I clear the 0139 code, it comes back within a day, dad gum it 👿

I'm using shell mid-grade. I'll go to premium and see if there's any affect

Pardon me if this has been asked, but which code reader is the Best Buy for being able to erase error codes?

Thanks John, I'm going to do the same thing

This is what a GM rep told my repair guy

PAX. Did you send your ECM to the guy? If so, what did he do for you?

I agree. I've spent enough money on the problem. I plan on just keep driving and see what happens to the light. BTW, the tune shop called GM and got a long winded discussion concerning the software in the 2004 and 2005. They said for those two years they had another company supply the software...

My check engine light is still on. Steady light. Thanks for the input. I haven't seen trouble reports re Corsa exhaust either ( or I would not have got one ) but this is what two different shops are telling me. I'm thinking about the four step method Suggested on YouTube: 1. Get roll of duct...

With no luck at the local repair shop, I bit the bullet and took her to the Cadillac dealer. They checked the codes and came to the conclusion that dispite replacing the 02 sensors, the car was reacting unfavorly to the Corsa exhaust I had installed. The dealer said the car needed to be...

You'd think! Course my repair guy drives a 2006 xlr and he can't seem to locate the problem, short of replacing both 02 sensors! Didn't work

CNC probably hit it on the head. Get to a xlr certified dealer!

Check engine light Look at other engine light thread for additional answers

Continuing: had both 02 sensors replaced today. Light was off at repair shop. On the way home, the light came back on @$&@$*#%. Scheduled another visit to the repair shop next week. Let you know what happens

My light came on. Code 0139. Set up a time for my repair shop to change the 02 sensor. Right after I scheduled the repair, the light went off. I cancelled the repair. Has anyone else experienced an intermitant problem? What did you do? What was the result? Appreciate any input. Thanks

I've heard a very faint clicking from the left dash speaker, but I have to lean as close as I can get to the speaker. I guess the answer lies with replacement or upgrade of whatever unit is generating the current clicking? also cubby, my lane-changing signal only flashes as long as I hold the...

Turn signal Yes, you are correct thumper, signal works, no sound to know when its on or off. Flasher on instrument panel too dim to be of any help