Weird Vibration at idle and get worse with the heat on...
#1
Weird Vibration at idle and get worse with the heat on...
Maybe somebody can help me with a problem that my 94 LT1 Z28 decided to have...
After I got back from I parked my car on the street cause I was going somewhere else later on....
Well I jump in my car and started her up and it had this weird vibration that rattled my interior while the engine was running, I go to turn on the heat and everything in my car is vibrating worse and the it sounded like it was going to quit.....
The exhaust sound changed from sound like a stock V8 to a cammed V8, so I turned the heat off but I still got a vibration like the first time... The idle hovers at 500- 650rpms but mainly at 500 in gear and park, I know its supposed to be around 700 or so, so I gradualy reved the rpms up and the vibrations was still there
Well I put my car into gear and the vibration has gotten worse and then turned on the heat and everything was rattling more worse than before...
So I listened to my exhaust and it sounded like I was running on 7 cylinders but when I drove it I still had the power of all 8 cylinders and no vibrations.... There are no vaccum leaks what so ever....What gives???
I have come down with some thoughts in what might be wrong...
1. Ignition Coil
2. Ignition Module
3. Plug wires
4. Opti
5. o2 Sensors
Can anybody help me???
Thanks
After I got back from I parked my car on the street cause I was going somewhere else later on....
Well I jump in my car and started her up and it had this weird vibration that rattled my interior while the engine was running, I go to turn on the heat and everything in my car is vibrating worse and the it sounded like it was going to quit.....
The exhaust sound changed from sound like a stock V8 to a cammed V8, so I turned the heat off but I still got a vibration like the first time... The idle hovers at 500- 650rpms but mainly at 500 in gear and park, I know its supposed to be around 700 or so, so I gradualy reved the rpms up and the vibrations was still there
Well I put my car into gear and the vibration has gotten worse and then turned on the heat and everything was rattling more worse than before...
So I listened to my exhaust and it sounded like I was running on 7 cylinders but when I drove it I still had the power of all 8 cylinders and no vibrations.... There are no vaccum leaks what so ever....What gives???
I have come down with some thoughts in what might be wrong...
1. Ignition Coil
2. Ignition Module
3. Plug wires
4. Opti
5. o2 Sensors
Can anybody help me???
Thanks
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Magenta_Hearts
General 1967-2002 F-Body Tech
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03-05-2015 07:01 AM