Hesitates on acceleration

1990 CHEVROLET 2500
88,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
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CHUCK 1958
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  • 1 POST
Truck hesitates on acceleration, struggles going up hills lacks power when loaded.
Apr 25, 2019 at 10:41 AM
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KASEKENNY
  • CERTIFIED EXPERT
  • 18,907 POSTS
Hi Chuck,

Have you done anything to address it? Meaning have you tried to replace any parts? If you have, that can help us narrow it down.

Otherwise, the first thing I would go to is fuel. Is it getting the proper amount of fuel to supply the power needed? Here is a resource that helps go through the basics of a hesitation. Give this a read and let me know what you think. However, the most important thing I would be interested in is if you can get a fuel pressure reading while you are driving it. I attached the process for gaining access to take the reading. Then just tape your gauge to the windshield because they are usually not long enough to reach into the cab.

Let me know what you find and we can go from there. Thanks

https://www.2carpros.com/articles/engine-hesitates
Apr 26, 2019 at 1:54 PM