Question about 1994 Mercury Topaz

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How do I reset my check engine light on 1994 Mercury Topaz

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 1994 Mercury Grand Marquis Check Engine Light Code 332

its the tube going from the egr valve to your exhaust it have carbon build up and you either have to replace it or get a metal coat hanger and clean it out.

Posted on Sep 26, 2009

  • 198 Answers

SOURCE: Can I use my didgital multimeter to test my check

I dont beleive you can BUT you can check the sensors(O2,map,knock,tps etc) that are setting off the check engine light with your multimeter.You have to find the manufacturers output specs on each sensor(which unfurtunately I dont have).You put your ground lead to ground and your positive lead to the voltage wire on each sensor (with multimeter on voltage setting) If you take the car to AutoZone or Pepboys they'll scan the check engine code to ID the sensor for FREE

Posted on Nov 03, 2009

Sean80000
  • 1867 Answers

SOURCE: 1994 mercury Topaz oil light is on and i do not need oil

Low Engine Oil Pressure

The oil light is signaling low oil pressure in the engine's lubrication system. You say that you have checked the oil level in the engine and it is ok.

The oil pressure needs to be checked with an oil pressure gauge. (It is most unlikely that the warning light is faulty).

Should the oil pressure prove to be low - as I expect it will - the cause needs to be investigated. It is likely that there is a malfunctioning or failed oil pump or the oil pressure relief valve is sticking in the fully open position.

Failure to change the engine oil, at least at intervals stated by the manufacturer, will result in severe oil degradation and reduced oil pressure. However this is usually not enough to trigger an oil pressure warning light.
If you have changed the engine oil in the last six months or so, and have not done over about 7000 miles since then, oil degradation should not be contributing to the low pressure problem.

If the oil pressure gauge check confirms low oil pressure I suspect, on further investigation, that you will find a problem with the engine's oil pump.

You will need to get your vehicle to a reputable auto service shop to have the oil pressure checked and the problem investigated. Do not drive the car in this condition (except to get it to the repairer). The engine is not receiving sufficient lubrication and you run the risk of expensive engine damage and total engine failure.

Hope all goes well with it. Cheers.

Posted on Dec 07, 2009

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Low Engine Oil Pressure

The oil light is signaling low oil pressure in the engine's lubrication system. You say that you have checked the oil level in the engine and it is ok.

The oil pressure needs to be checked with an oil pressure gauge. (It is most unlikely that the warning light is faulty).

Should the oil pressure prove to be low - as I expect it will - the cause needs to be investigated. It is likely that there is a malfunctioning or failed oil pump or the oil pressure relief valve is sticking in the fully open position.

Failure to change the engine oil, at least at intervals stated by the manufacturer, will result in severe oil degradation and reduced oil pressure. However this is usually not enough to trigger an oil pressure warning light.
If you have changed the engine oil in the last six months or so, and have not done over about 7000 miles since then, oil degradation should not be contributing to the low pressure problem.

If the oil pressure gauge check confirms low oil pressure I suspect, on further investigation, that you will find a problem with the engine's oil pump.

You will need to get your vehicle to a reputable auto service shop to have the oil pressure checked and the problem investigated. Do not drive the car in this condition (except to get it to the repairer). The engine is not receiving sufficient lubrication and you run the risk of expensive engine damage and total engine failure.

Hope all goes well with it. Cheers.

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