My brother the original owner just gave me a 92 Taurus GL with 71,000 miles on it. It seems to be in great shape except for two things. When I accelerate hard and the engine is under a light load or on a warm day I get pinging. I am guessing this is the EGR valve. My question is can the EGR valve be cleaned or does it have to be replaced ? Also if it is replaced are there any other parts that need to be replaced at the same time. I have no idea where the EGR valve is on this car but I would borrow a copy of a shop manual and do the job myself.
My second question deals with the rubber bushings in the suspension. The car squeaks and groans when the wheels turn and the chassis also has squeaks. The mechanic at the service station says to spray all the bushings with WD40. Since WD40 is designed to displace water and not be a lubricant I want to know if there is something else I should use to spray the bushings?
Thanks