1987 GTA car idles rough
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Joined: Jun 2008
Posts: 160
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From: Waterloo, Iowa
Car: 1987 Pontiac Trans AM GTA
Engine: 5.7 LTR
Transmission: Automatic
1987 GTA car idles rough
1987 GTA car runs rough and won't start. Car was shaking from rough idle. What would be the possible causes of this?
Joined: Nov 2008
Posts: 2,093
Likes: 175
From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: 1987 GTA car idles rough
Any number of things. Bad spark plugs, bad gas, low fuel pressure, bad injectors, bad pressure regulator, bad ign wires, sensor reading way off, large vacuum leak, stuck egr, broken mechanical part inside the engine... give us some details. Check plugs, look for things disconnected like wires or vacuum lines.
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