moorlander999 0 Posted August 27, 2013 Share Posted August 27, 2013 I have a 1998 rav4 GX petrol. Owned since new. 120,000 on the clock....When its been stood for a day or so ( flat cold etc) it smokes initially on start up. Not an oily smell...but smells like its running really rich...like and old manual choke on full etc......not burning any Oil. It doesn't do this when I have it in gear and slip the clutch on start up to reduce the revs......This only happens when the engine is flat cold.Also it sometimes races when hot.......so I remove the electrical connector( I think ) to the throttle position sensor then reconnect it returns to normal idle.Get 350 miles to a tankful....still has original exhaust and cat'Any ideas Quote Link to post Share on other sites
MacaPittuck 0 Posted August 28, 2013 Share Posted August 28, 2013 could be the valve guides! Not 100% sure but it's possibleMac Quote Link to post Share on other sites
anchorman 277 Posted August 28, 2013 Share Posted August 28, 2013 Perfectly acceptable for that age and mileage. Quote Link to post Share on other sites
CharlieFarlie 336 Posted August 28, 2013 Share Posted August 28, 2013 Valve stem seals can wear or harden... When the car sits overnight a wee bit if Oil seeps down into the combustion area which gets burned on start up.. Quite common and will do no harm .. Quote Link to post Share on other sites
moorlander999 0 Posted August 28, 2013 Author Share Posted August 28, 2013 It doesn't smell of Oil it smells like very rich mixture like the choke is on full... And if I put it in gear and Ali the clutch as I start it up to reduce revs it doesn't smoke .... Is it a rich setting fault ? Quote Link to post Share on other sites
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