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01-06-2009, 11:32 PM
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#1 | |
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AF Newbie
 Join Date: Oct 2007
Location: pacoima, California
Posts: 16
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03 tahoe! Rpms rise and drop
my 5.3 2003 tahoe has an rpm rise and drop at 500 rpms in idle whenever there is and ac/heater load. It also has turned off on a couple of occasions but always starts right away. please help
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01-07-2009, 12:01 AM
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#2 | |
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AF Enthusiast
Join Date: Jan 2004
Location: San Jose, California
Posts: 2,619
Thanks: 1
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Re: 03 tahoe! Rpms rise and drop
I would clean the Throttle Body first as when they get dirty they can cause a rough idle. I clean mine every 10K miles or so.
//2000CAYukon |
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02-27-2009, 08:12 PM
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#3 | |
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AF Newbie
Join Date: Aug 2008
Location: windsor
Posts: 28
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Re: 03 tahoe! Rpms rise and drop
It sounds like you might have to replace the throttle position senser. I had the same problem on my 2001 tahoe. If it is the TPS it will also set the engine light on.
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