Throttle Hesitation
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Junior Member
Joined: Oct 2005
Posts: 70
Likes: 0
From: Henderson,Texas
Car: 87 iroc z28
Engine: 5.7 TPI
Transmission: 700R4
Throttle Hesitation
I don't know what's wrong with my car. I have been dealing with this problem for too long now, and I can't figure it out. I have an 87 iroc z28 with a 5.7, it originally had a 5.0. I changed all the appropriate components. It has a hesation when I give it gas. Once the RPM's get higher the hesitation is not as bad, but it is still present. The motor has about 7 to 8 thousand miles on it. I've taken the car to different mechanics, but since the computer and their scan tool dosen't tell them exactly what is wrong with it thay say that they can't help me.
I'm beggiong for some help now. I love to drive the car and right now it is just sitting in the garage.
I'm beggiong for some help now. I love to drive the car and right now it is just sitting in the garage.
Supreme Member
Joined: Jan 2003
Posts: 1,931
Likes: 1
From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Do all the free stuff here like IAC cleaning , reset TPS . General tuneup . Just to start at square one 
there is good tech articles on all of it here
there is good tech articles on all of it here
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