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None of these issues for me yet. 91k miles

allison trans fluid I flushed out at 69,000 miles with Amsoil Torque Drive. I did change the spin on and continue to replace every 8-10,000 miles. I do not see any benifit to changing the internal screen filter unless you rebuild in my opinion.

My A/C will blow cold air for a while and then it like the heater gets turned on. It only seems to do this if I have the temp controls set for very cold. If I set it just into the blue section of the temp controls, then it will usually be ok, but if I move the temp controls to about midwau...

My wife drives a 2002 yukon xl and just yesterday her auto headlights quit working, low beams. However, in the morning, she goes out at 8:00 am and starts the car and the low beams are working. Tonight, in the dark, she gets in it and no low beams. She can flip the brights on at any time. I...

They do look Good. I have the problem of 18" wheels which limits the number of lesser expensive options for tires. I do not want to have to pay $225 a tire to get new ones. My Nitto grapplers are on the last couple of months of wear. I do not go off road very much so a tire suited for...

If it sounds to good to be true....!!!

I do not know if there is increase in fuel pressure but I have run both the 225hp and now the 160hp tunes for 7 months with no signs of problems. Maybe someone else who is more knowledgeable can chime in.

Ppe I have had good results from my PPE set on 160hp setting getting 17 in town and 20-21 on the highway. Lots of power if you need it!

The reality is that any power increase technically could shorten the life of the motor. But this depends on how much you use the increased power, the right foot. With a well maintained powertrain and a conservative use of the power you should get good life from the motor. I can tell you from...

I have a brand new LBZ turbo mouth piece with vclamp for sale $65.00 you pay the freight from Dallas, TX. If you are interested send me a PM payment terms can be worked out.

Thanks

LBZ mouth piece Can anybody tell me what the GM part# is for the LBZ mouth piece?

Welcome as well from around your part of the country.

I change mine every 10k mi.

Thanks durallymax. This is very comprehensive information. Where do you get this info?

Cleared the codes and all is well for the moment.

Thanks for the help. I will try to clear the codes and see.

Does any body have any suggestions on how to fix this problem??? I would greatly appreciate any help!!

Glow plug reprogram was done back in July 2007.

I do not know if this is the correct forum but my engine light came on today. So I pulled the DTC code off, 0678. Can any body tell me what this is and how to remedy this code??:noidea: