Re: Weird Surging

Posted by TxGoat On 2024/2/6 19:37:34

It could still be a fuel supply issue, such as a pin hole in the fuel line between the pump and the tank or any other sort of leak. A non-working fuel cap vent might cause it.

It's possible the vacuum advance could cause it, or a lack of lubrication on the distributor rotor or too much lubricant on it. Too much or too little fluid in the transmission could cause it. Some automatics are very sensitive to fluid level. Some cars have the wrong dipstick in the transmission.


Long shots: A problem with motor mounts or with the throttle linkage could cause a feedback effect.

A problem with the fuel flex line or fuel pump linkage might cause it, as could a defective fuel pump diaphragm or spring or valves.

A weak or broken valve spring might give a surging effect.

Clogged exhaust?