Question about 1991 Lincoln Mark VII
The car has only 60,000 mi and is very powerful but one day driving home after work I stopped a a red light and when the light turned green I floored it for like the third or fourth time since I got the car ( I got the car at 58,000 mi ) and then a few miles down the road I heard a noise while driving that sounded like a tire was starting to come apart but when I pulled over I noticed it was coming from under the hood, so I lifted the hood and could hear the pinging coming from the intake housing. I had to baby it back home, Can you help me please, Terry W
Based on your description I would say one of the intake valves stuck open. If that is true, you will likely have to remove the head to fix it.
Posted on Dec 09, 2012
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Posted on Jan 02, 2017
Your vehicle is trying to overheat. The reduced power you are seeing is programmed into the PCM (powertrain Control Module).This vehicle uses a cylinder head temperature sensor which is mounted into the wall of the cylinder head and is not connected to any coolant passages.It sends a signal to the powertrain control module indicating the cylinder head temperature. If the temperature exceeds approximately 121°C (250°F), the powertrain control module disables half the fuel injectors at a time. The powertrain control module will alternate which fuel injectors are disabled every 32 engine cycles. The cylinders that are not being fuel injected act as air pumps to aid in cooling the engine. If the temperature exceeds approximately 166°C (330°F), the powertrain control module disables all of the fuel injectors until the engine temperature drops below approximately 154°C (310°F).
I would have someone check the function of your cooling system and cooling fan.
Posted on Feb 10, 2009
Have you checked your belts? A piece of belt may have come off and been slapping under your hood, and then fell off completely. While it was slapping, your computer would have detected the slow down of pulleys etc. and caused your engine light to come on. Then when the piece broke off, everything would be back to normal. Let me know!
Posted on Apr 08, 2009
The most common cause of this is the gas cap not being tightened completely after re-fueling or a worn rubber gasket on the cap.Remove the gas cap and turn it over and check the gasket if it looks like it's not worn put the gas cap back on and then tighten it until it clicks several times, then it make take a little while before the check engine light goes off. If this still happens shortly after tightening the gas cap have the check engine code read at an Automotive Parts store. Some stores have the code readers and they'll get what the code means and advise you at that point.
Posted on Aug 28, 2009
Testimonial: "thanks for your help "
if it's not running bad, it may be a simple crack in a pcv line, or a loose hose(vaccum). should be simple to fix.
Posted on Aug 29, 2009
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