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Old 10-25-2012, 08:34 AM   #4
MT-2500
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Re: 2003 Tahoe 5.3 Flex Fuel Surging at 2000 RPM uphill

Quote:
Originally Posted by miverson332 View Post
Thanks jcat, you sure like to make a guy feel SPECIAL! I failed to mention the pressure was checked by dealership. They said it was fine, but wanted to charge me a but load of more money to diagnose the actual problem. Thought I would try here first, but can't find any posts exactly like mine.
You now tell us.
I failed to mention the pressure was checked by dealership.
But did they check it on the road when acting up?

As Jcat said get a fuel pressure gauge on it.
Tape gauge to outside windshield or outside mirrow.
Drive it untill it acts up and check fuel pressure when it is acting up.
If low replace pump.
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