iv got a 1993 xj6 obviously and ive got alot of white smoke coming out on start up i smelt it and it smelt like tranny oil so i figured it must be the vacuum modulator so when i put it on the hoist to fix my steer rack i started searching for one and found no vacuum modulator. so im wondering if synthetic oil burns white or is there any other way for the tranny fluid to run into the engine. give me ur guys thoughts thank ur

 

sneby09:
I believe the conventional wisdom concerning exhaust colors is white for water, blue for oil, black for fuel. The original head gaskets on our cars are a known weakness. If you have excessive white smoke, I would make sure the coolant levels are where they should be and then get the head gasket tested. I'm not exactly sure how they do that - but your mechanic would. My car had the gasket and seals done at only 65K miles! - mercifully before my ownership.

Cheers!
Scott

 

right that has crossed my mind a couple times and my baby is almost a 100 000 km but like i said it doesnt even smell like antifreeze it smells like oil

 

ALL (I do mean ALL!!!!!!!!!!!!!!!!!!!!!!!!!!!!) 1993/94 XJ6 AJ6 engines with significant mileage start with a puff of oil smoke unless you replace the valve stem seals on a regular basis. I have done the stem seals in warranty and customer pay, with the head 'in-situ' and with the head removed but it is a common fault. I have a 1992 XJ6 and it starts with a slight puff of oil smoke (not like the 93/94 but a little). I don't think I am going to spend several hundred dollars on parts and 10 hours of labor on a problem that will burn a few ounces of oil every oil change just to keep the exhaust system from 'puffing blue smoke on start-up'.

If the head gasket is leaking oil from the distributor area or fails completely, then I would replace the guide seals as part of the HEAD-OFF repair. It's a judgement call but I accept the small problems from my old car.

bob gauff