Tips and Advice about GMC
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1992 GMC: Cooling Off
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Trevor Wild, AuthorQ--The air conditioner system on my 1992 GMC truck is leaking Freon. A shop wants to install R406A refrigerant with ester oil containing dye in order to test for the leak. I’m told R406A is okay for the old...
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2000 GMC K-1500: Clatter of Life
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Trevor Wild, AuthorQ--I have a 2000 GMC K-1500 SLT 4X4, 5.3-liter engine, 40,000 miles. If the vehicle has been sitting for too long, when I start it up there will be a ticking noise coming from the engine. The ticking will only last...
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1997 GMC Safari: Safari Not So Good
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Trevor Wild, AuthorQ--I have a 1997 six-cylinder GMC Safari van and have been having recurring problems with hard starting, not starting and running rough. Recently the “service engine” light has been coming on. I have had the...
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1997 GMC Safari: Van Stumbles
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Trevor Wild, AuthorQ--This is in response to the letter regarding the '97 GMC Safari van having hard starting, not starting, and rough running problems: I have a fleet of Chevy Astro vans, all in the '97 to '99 range. I had this...
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2000 GMC Yukon: Slapping Pistons
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Trevor Wild, AuthorQ--My 2000 GMC Yukon 5.3-liter, with 64,000 miles has a couple of issues I would like to ask you about. In the morning when cold, the engine taps like it has low oil for about two minutes until warmed up. I have...
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1998 GMC Z71: Bearings on the Case
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Trevor Wild, AuthorQ--I have a 1998 GMC, Z71 5.7-liter, V-8 truck. I noticed that when it's cold the oil pressure runs about 70 psi, even when idling. Then after it warms up, it drops to barely 20 at idle and 40 at speed. It has...
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2000 GMC Safari: Squeaky, The Little Van That Annoyed
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Trevor Wild, AuthorQ--I have a 2000 GMC Safari van that has developed so many odd noises it’s hard to live with. However, it runs and drives great and has been exceptionally reliable. Most of the noises come from the front of the...
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GM Bringing Fuel Cells Home
Power to the people. Hydrogen power, that is. Starting in January, General Motors will begin to deliver the first of 100 road-ready fuel cell vehicles, to motorists in California, New York and Washington, D.C....
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