Can feel engine surging while driving. tachometer will show drop in RPM’s.just had a new fuel tank sensor installed 3 weeks ago.
Dec 15, 2019 at 11:11 AM
Engine surging
2003 CHEVROLET BLAZER
HARRY LONG
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Good afternoon,
Is the check engine light on? If it is, can you have the codes checked and let me know.
Some possibilities:
1. Low fuel pressure from a bad fuel pump.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
2. Catalytic converter clogged not allowing the engine to breathe.
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
3. EGR not seating fully closed form carbon the end.
https://www.youtube.com/watch?v=51z-k4YRHI4
Roy
Is the check engine light on? If it is, can you have the codes checked and let me know.
Some possibilities:
1. Low fuel pressure from a bad fuel pump.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
2. Catalytic converter clogged not allowing the engine to breathe.
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
3. EGR not seating fully closed form carbon the end.
https://www.youtube.com/watch?v=51z-k4YRHI4
Roy
Dec 15, 2019 at 12:22 PM
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