[quote=john8381]
Quote:
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Originally Posted by GMCTech
Here's the story on the P0410:
GMC TEch, need some help. Were do I look for the AIR pump? Cannot locate it, nor is it listed in the Haynes Repair manual.
Thanks for any help.
John
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My Jimmy has remote oil filter, accessible through a door just behind the front bumper. I had to take out the bolts and remove the plastic assembly that the cover hangs on to see the pump, just behind the bumper towards the passenger side. It looks kind of like a bell shape enclosure with hose connections and electrical connector. Follow hoses from there to see check valves described in GMC Tech's most excellent posting.
The fuse is right where he said, but I had to really look close to see the fuseholder, mine had a cover over it.
Now,can you bypass it? Didn't see a practical means, probably not legal anyway,however....
This test that sets P0410 did not run immediatley on my vehicle after being reset (During cold weather). It seemed that you had to drive over 100 miiles before it set the check engine light. Reset it drove 100 miles, ran over to inspection station, states computer crap said AOK. If state says its OK, I must agree with them...
I put the new pump on the shelf until next year, if I need it...
Hope that helps
PS, If the public knew how small the effect of this most aggravating and expensive system really was....