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Reload this Page Throttle Hesitation

Tech / General Engine Why is my car making that sound? My car won't start! Combination questions? Don't see a board for your problem or have other technical or engine specific questions? Post them here!

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Old 02-22-2006, 10:34 AM   #1
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Join Date: Oct 2005
Location: Henderson,Texas
Posts: 70
Car: 87 iroc z28
Engine: 5.7 TPI
Transmission: 700R4

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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.
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Old 02-22-2006, 12:21 PM   #2
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Join Date: Jan 2003
Location: Ontario, Canada
Posts: 1,926
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class

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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
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PROJECT UGLY DUCKLING
1989 10:1 353 L98Edlebrock base and runners ( really ported)ZZ4cam ,1 3/4 SLP shorties 083 heads ...cleaned up andstuded w/1.52 rr , LT4 valve springs and retainers and a 3 angle valve job
suspension mods (Hotchkis LCA's PH bar, KYB shocks and struts)
T-5 3.73
T-62 turbo to be installed next ...Exhaust clip ...gota let it load....
http://media.putfile.com/My-exhaust-clip
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Old 02-22-2006, 01:20 PM   #3
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Join Date: Oct 2005
Location: Henderson,Texas
Posts: 70
Car: 87 iroc z28
Engine: 5.7 TPI
Transmission: 700R4

Classifieds Rating: (0)
how do i reset the TPS and clean the IAC?
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Old 02-24-2006, 12:21 AM   #4
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Join Date: Jan 2003
Location: Ontario, Canada
Posts: 1,926
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class

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Send a message via ICQ to D's89IROCZ
it's all in the front page under articles. You can read it there
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Reload this Page Throttle Hesitation
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