The car hesitate to come up to speed?

PERCYPRINGLE2

MEMBER
2002 CHEVROLET MONTE CARLO
6 CYL
FWD
AUTOMATIC
65,000 MILES

I own a 2002 monte carlo that I drove everyday, now the car hesitate to come up to speed when I first take off from a light. People told me I needed to change my fuel filter and get a tune up so I got that done and it still didn't run right. Then the man at auto zone said I need to change my transmission filter, so I did that and it still didn't work. So now there are people telling me to change my fuel pump and I really don't think it is my fuel pump. Now i'm here to ask for your opinion on what could be the problem.

2 Replies

DENNYP

MECHANIC
1,824 POSTS

You should have your fuel pressure checked to see if it drops off during accelleration. If it does, then change your fuel pump.

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Sunday, December 16th, 2007 AT 1:56 PM

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

I agree with DENNYP, this sounds like a weak fuel pump issue, here is a guide to help you test the fuel pressure which you can rent the kit from the auto parts store for cheap or free.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Key On Engine Off 52-59 psi

This guided can help as well

https://www.2carpros.com/articles/engine-hesitates

Here is how to do the test and change the fuel pump out in case it fails the test. You are lucky because the fuel pump has a trap door. Check out the images (below). Please let us know what happens.

Images (Click to make bigger)