James Watkins
New Member
I apologize if this is an annoying question but I have no idea what I'm doing. Basically I've had an issue with the fast idle on this car ever since I bought it around 6 years ago now. The fast idle speed seems fine, as does the slow idle speed, but it stays in fast idle for far too long when I first start it. It seems to take way too long for things to "warm up" so that tapping the accelerator pedal drops the fast idle speed down to the slow idle speed. At least a minute or two on hot days and so long on cold days that I usually don't even drive the car if I can avoid it. My question is what could be causing this? I know there is a choke temperature sensor, could that be the problem? Should I replace it? Or the vacuum choke pull-off thing? Or is it an issue with the cam for the fast idle? It seems to me that it would be an issue with the car thinking it's not warm enough, since it always idles down faster the hotter it is outside. I would really appreciate some insight as to what might be causing this and how I could go about fixing it. The car runs pretty great otherwise, but this issue has been bothering me for years and years. I should have fixed it a long time ago, but carburetors kind of scare me if I'm being honest. I've only ever worked on small engine carbs and fuel injection.
Fair warning, I know basically nothing about carburetors. Especially more complicated ones like a thermoquad. I would much rather have an old pro fix this, but unfortunately that's not really an option at the moment. So any insight would be greatly appreciated. Thanks.
Fair warning, I know basically nothing about carburetors. Especially more complicated ones like a thermoquad. I would much rather have an old pro fix this, but unfortunately that's not really an option at the moment. So any insight would be greatly appreciated. Thanks.