Shane Herbert, Blue Haven NSW

G’day Al, I have an intermittent problem with my imported V6 Toyota Surf. Every now and then when I pull up to stop at traffic lights or in the driveway my engine’s idle will increase dramatically to 2000rpm or so. I can cancel it by giving the engine a healthy rev or keeping my foot on the brake and slowly release the clutch so that it bogs right down.

Usually once I push the clutch back in the idle is back to normal. I have noticed that it happens more often when the air-conditioning is turned on, however it does happen with it off too. This one has me stumped! Help me Allan!

Allan

G’day Shane, I’d stop “semi-stalling” the engine straight away mate unless you want to find out what the inside of your Surf’s clutch looks like. Not nice.

I’d be inclined to check the idle up solenoid on your air conditioner. I think for some reason or another, be it vibration or movement or heat or something it’s fouling up. I would disconnect it completely and I’d think you find that’s the culprit of the problem. I’ve had trouble with these things before so I’d definitely be checking that out first. Thanks mate.