Just replaced the thermostat in the g/fs levin and now sometimes when you stop the car (at lights etc) the revs will go right down and the whole engine starts to shake.
I took the air filter out to see if that was causing the problem, but it still seemed to run rough.
Going to check the timing, but yeah seems like the problem was likely there before but with the engine temp low because of the thermostat it wasnt noticed.
anything i should look at?
cheers