Hummer Forums by Elcova - service@25,000

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What is recomm. for 25k?

Re: service@25,000

Good information Phil, and of course the usual GM oil life system oil changes (or every 12 months) if needed, and last the lubrication of suspension, trans linkage, park brake cable guides, etc. I dont like to forget the small things. All of which could be found on section 7 of the owners manual.

Re: service@25,000

Quote:

Originally Posted by PhilD

Nothing. Service intervals are at 22,500 and 30,000.
Apart from an oil change and lube, this is what your manual says;

22,500 Miles (37 500 km)
Check rear/front axle fluid level and add fluid as needed.
Check constant velocity joints and axle seals for leaking.
Rotate tires.

30,000 Miles (50 000 km)
Check rear/front axle fluid level and add fluid as needed.
Check constant velocity joints and axle seals for leaking.
Rotate tires.
Replace fuel filter.
Replace engine air cleaner filter.

Inline fuel filter is only on the 2003 H2 with the returnless fuel system. 2004 and newer have the filter in the tank and it is non-serviceable.