miss at idle only
10-31-2006, 01:30 PM
#1
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Car: 87 T/A
Engine: 305 TPI
Transmission: 700R4
miss at idle only
I have an 87 TA 305 TPI. I have a miss at idle that is very confusing. The car will idle fine but every couple minutes it will have a quick stumble in the idle, it is just enough where you can feel that it stumbled. I have had the pickup coil replaced ( AC Delco) & had the module checked at autozone (the old one Accel went bad replaced with original Ac Delco unit). I have also replaced the dist. cap & rotor with new msd & the wires are new taylor wires. The plugs are new Ac Delco. Are there any usual causes for this symtom?
10-31-2006, 01:35 PM
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Car: 1989 GTA
Engine: 5.7 TPI
Transmission: A4
Axle/Gears: 3.23
I have an 87 TA 305 TPI. I have a miss at idle that is very confusing. The car will idle fine but every couple minutes it will have a quick stumble in the idle, it is just enough where you can feel that it stumbled. I have had the pickup coil replaced ( AC Delco) & had the module checked at autozone (the old one Accel went bad replaced with original Ac Delco unit). I have also replaced the dist. cap & rotor with new msd & the wires are new taylor wires. The plugs are new Ac Delco. Are there any usual causes for this symtom?
dirty IAC?
11-01-2006, 10:25 AM
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Car: 84 Z28 H.O. w/Megasquirt II
Engine: semi-stock L69
Transmission: T-5 non W/C
Axle/Gears: 3.73 open
As in the engine misses 1 single event or actually coughs through 3-5 strokes?
A tiny exhaust, or maybe even a tinier intake leak may cause something of this nature.
If it only misses one event every couple minutes, I don't see any real problem. The universe is not a perfect place. An extended symptom may indicate something is wrong, and I think the leaks would be a good place to start.
A tiny exhaust, or maybe even a tinier intake leak may cause something of this nature.
If it only misses one event every couple minutes, I don't see any real problem. The universe is not a perfect place. An extended symptom may indicate something is wrong, and I think the leaks would be a good place to start.
11-03-2006, 11:51 AM
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Car: 87 T/A
Engine: 305 TPI
Transmission: 700R4
Could it maybe be a small vacuum leak? Isn't there a way to check for these with a propane torch(benzomatic)? Does anyone know how?
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