Question about 1998 Lincoln Continental
It sounds like you have a couple of different issues here but here is how I would procede. First I noticed that you mentioned that you replaced the plugs but I didnt see any mention of the plug wires. I wuld be sure to do that. Check the new plugs while the wires are off and see if they are black like the old ones. If so then you have some oil control issues fouling out the plugs and that could either be coming from bad valve seals or the oil rings and on a higher mileage motor that is a definite possibility. Then remove the idle air control valve and clean the carbon and dirt deposits out of it. After that see if the hard start and surging is gone. If you are still getting a hard start I would start considering the fuel pump. Hook up a fuel pressure gauge to the fuel rail schrader valve (looks like a tire valve on the fuel rail) and see what pressure you are getting(good rule of thumb is anywhere between 35 - 45 psi) Shut the motor down and watch the gauge to see if the pressure is bleeding off. If so then you have a fuel pump issue and the hard starting is due to the exteneded amount of time it takes to essentially re-prrime the fuel system. Try these suggestions out and see if it starts acting better. I hope this helped and good luck.
Posted on Mar 27, 2011
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Posted on Jan 02, 2017
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