Driveability Problems
Thread Starter
Junior Member
Joined: Nov 2000
Posts: 30
Likes: 0
From: Ferndale, WA USA
Driveability Problems
My IROC seems to idle and accelerate great but "bucks" when cruising. When maintaining speed going up hill it has a faint and occassional miss (like a bump) but when I put the hammer down it runs sweet to 5500 where it shifts. It has new wires, plugs, rotor and cap so I know it has to be something simple that I have overlooked. Ideas?
TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
plugs?, have you checked timing? run a compression test? air and fuel filters?
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ICON Motorsports
1st & 3rd
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ICON Motorsports
1st & 3rd
Thread Starter
Junior Member
Joined: Nov 2000
Posts: 30
Likes: 0
From: Ferndale, WA USA
It ran great before I changed the cam and intake so I assume the compression is good, (ZZ3 motor with few miles) the timing is set at 6 BTDC and it has new filters. The strange part is that it pulls very hard from idle to 5500. It seems like it could be a slight vacuum leak but I sure can't find one.
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