Quote:
Originally Posted by crystalworks
I'd start with a smoke test. If no vacuum leaks... move onto the o2 sensors... and then finally check the catalysts. How many miles on this X5?
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Probably on to something there... for starters... I know I have the smaller bellows hose on the intake boot patched up with some gasket sealer... might have finally came loose. It was shredded when I got it. Sealed it when I bought the car since I read horror stories on here about purchasing non OEM and didn't have the extra to toss it at the time.
Had to take off the intake to replace the whole CCV system and went ahead and replaced all the seals and vacuum lines in a shotgun restoration to eliminate any potential problems down the road. So more than likely that intake boot since it is after the MAF and had to be removed while in such a delicate state.
Planning to do a smoke test on it tomorrow, just didn't have time to get down to the shop today.
As of this afternoon she's got 253,369 Miles.
Mystery Service History -- With one BMW service record from 2011 at 118k miles where they replaced the water pump and recommended the VCG be replaced due to some oil in the spark plug wells, but the owner declined on the latter. Needless to say I ended up replacing this myself a few months ago... along with pretty much any DIY you can find on this E53 Forum, short of the Oil Pan Gasket... which I am dreading if I ever have to do.
Quote:
Originally Posted by Crowz
I hade 80% of the same codes on a 2001 I just bought and it was the fuel filter.
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You know I ran some UV dye through the gas tank when I first got it... kept dying on me with 1/4 tank left and missing like crazy when below half a tank... turned out to be the fuel siphon jet o-ring... which AndrewWrynn had an awesome DIY that saved me there... but I was worried the bottles of UV dye I put into the tank might have done the fuel filter in. After the o-ring was replaced everything ran like clockwork. That being said I am pretty sure it's the factory fuel filter from the date stamp of 02/00 on it.... So very well could be on the table as well.
Great suggestions guys, thank you for your time.
Will post updates tomorrow afternoon.