Question about 1991 Lincoln Mark VII

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My 1991 MRK 7 LSC 5.0 just devloped an intake back fire and the manual I have isn't giving me specific info for exhaust or intake for either

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

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  • Lincoln Master
  • 21,873 Answers

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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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

chuck943
  • 783 Answers

SOURCE: 2000 lincoln LS check engine temp

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

ourhowse
  • 2007 Answers

SOURCE: Clicking Noise Coming From Under The Hood

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

bolinlamar
  • 157 Answers

SOURCE: when I'm on the road my check engine light comes

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

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SOURCE: 1993 Lincoln Continental v6 3.8L- whistling noise under the hood

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

stumann2
  • 193 Answers

SOURCE: Just purchased 2000 lincoln ls v6 and half way

I would take it straight back to the dealer and demand they fix it or give you full refund!

Posted on Feb 23, 2010

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1 Answer

My audi 100 1991 won't accelerate when warm. The


When you say wont accelerate does the RPM flares that would be the transmission slipping, or you step on the pedal all the way and the vehicle has lack of acceration you can hear a hissing noise that would be a plugged exhaust.Here the thing you related it to fuel has the problem on the ignition coil is a powerstage if this stage acts up it allows you to accelerate you just dont go anywhere it back fire through the intake that would be the power stage it located on the ignition coil

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My jetta give back fire when it s running


Backfiring is usually caused by one of two things. One is a bad valve - this allow gas to escape around it and back through the intake if it is an intake valve - or exhaust if that.
Second bad spark plug/firing.,

Check all your spark plug wires - if older than 5 years - generally replace them. If you're on a tight budget then just be sure they are not misfiring. One way to do this is to check at night and see if you see any random sparks flying around near the plug wires.

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Gary @ Fix Ya.

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I need to know the torques specs for the head bolts on a 1991 vw passat, can you help


I,m assuming that you have the head off for some reason. So before you put it back together you need to know a couple things. Make sure your crank is lined up with your timing mark for TDC BEFORE you put the head on the engine. Also the timing marks on the head have to be lined up BEFORE you put the head on. If they don't do this properly you will bend valves when you try to get it lined up.
The head bolts must be tightened in a specific order or the head will crack.They must also be removed in the reverse order. The five bolts on the exhaust side of the engine are numbered from the timing belt in this order: 10-4-2-6-8. The five bolts on the intake side are numbered from the timing belt in this order: 7-5-1-3-9. Sorry I can't send pics so maybe draw this out before you start, basically it a set of X's.
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The alternator bracket has to come out as well if you want to remove it from the top. Otherwise, I think if the entire exhaust system is removed, the alternator will come out. The bracket has 4 bolts that attach to the engine. Without removing it (after removing your alternator and setting it on the back bracing out of the way) you can't get the alternator past the intake manifold or alternator bracket.

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_____........._____
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e
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