oil pressure light then truck stalls out

2002 CHEVROLET TRAILBLAZER
148,888 MILES
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TOM1974
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I start the truck and let it run its fine but after you shut it off and let it sit then start it the rpm drops, you have to put your foot on the gas and the brake when at a traffic light. The oil pressure light comes on then the truck stalls when the ac/heat is on but it does not do it all the time. Can someone please help me need to fix as soon as possible winter almost here thank you.

Tom
Jan 12, 2012 at 12:05 AM
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RIVERMIKERAT
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Almost? You live in the southern hemisphere? It's middle of winter up here.

Check for vacuum leaks. Check fuel pressure.
Jan 12, 2012 at 12:14 AM
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RASMATAZ
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Check/Test the fuel pump and oil pressure sending unit
Jan 12, 2012 at 12:15 AM
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TOM1974
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Thank You gentlemen very much

Tom
Jan 12, 2012 at 12:44 AM
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RIVERMIKERAT
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Our pleasure. Be sure to tell your friends about us.
Jan 12, 2012 at 1:02 AM
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