i have a 92 grand marquis(4.6)that has developed syptoms that are very steady,the car has close to 160,000 or so miles and whats happening is-every now and then the "check engine light "will flash on a few seconds or so, the car runs and drives great but if you drive more then an hour or so,and stop at a light for more then a few minutes(car in gear and foot on brake steady idle)the engine will kill,not spudder,or miss ,just flat out kill,the car starts right up no problem and runs fine,but next stop light/sign.give a few minutes and it kills again,if running car within the hour,no problem,if car is in neutral or park motor running,no problem,just in gear with foot on brake after an hour or so after its plenty hot. now another thing is that could help shed light on the problem is-the car eats oil very much,when the car sits a few minutes then your give it gas,there is a cloud of blue smoke from the tail pipe,upon running is it not noticable unless you sit a few minutes then give it gas.there seems to be only this cloud for a few seconds upon accelleration,my guess is that there is probally a piston or two with bad rings(older engine)and that maybe low compression causing the problem??? any ideas or comments??if this is probally the cause,is there any products(high mileage oil,synthetic oil,)or something to help the engine run a little better,i will probally just add oil as i need it,not overhaul it. thanks bob
- posted
18 years ago