Having problems with your 1999 Lincoln Town Car ?

1999 Lincoln Towncar: erratic miss while accelerating No fault codes New plugs, New fuel filter, Added fuel treatment, I'm stumped.

Posted / edited by AnonymousUser on : 10-12-2018

Answers :

This is a common problem with these ford engines. this particular ignition system is a coil on plug system meaning there is a individual ignition coil on every spark plug.i am going to assume you don't have any cracked spark plugs, and they are gapped correctly and you would have a dtc(diagnositic trouble code). there are two common issues 1- you have faulty ignition coil boots which is allowing the current to arc through the boot. 2- faulty ignition coil. with no check engine light i would recommend allowing your lincoln, ford dealer to perform a diagnostic scan as they can test your individual ignition coils to pinpoint the fault. coil may be breaking down under load and or heat. your local independent repair shop diagnostic scanners are not capable of testing individual ignition coils and in turn they may recommend replacing multiple coils until problem is fixed. hope this helped, if more info is needed feel free to contact me.
Hello, as a Ford technicain (35 years) what I found most often with the 4.6 V8 as the cause of a erratic misfire in this cars engine was the Spark Plug wire boots burn through and short to the cylinder head, the holes are tiny, and unless you have seen them before you would not recognise them as the source of the problem, you do not mention that the Spark plug wires were replaced, if not replace them. The mileage that these boots failed/burned out at was around 50-75,000, it was common in the Town car the Crown Victoria and Mercury Marquis all use the 4.6 V8.
Repair Help & Product Troubleshooting for 1999 Lincoln Town Car

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