Question about 2001 Jeep Cherokee

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Burnt valve would back fire and run rough, burn oil, wouldn't it? The vehicle isnt experiencing any of these.

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  • jjjasonjj Feb 02, 2009

    Funny, I found that you can check the error code on the dash (ODB) so i did this and received a code of P1762 ("GOV Pressure Sen Offset Volts Too Low Or High"). I was told that this means that I will need to replace the governor pressure sensor, which is located in the governor body on the valve body transfer plate. Do you know if this is true and if so, is it easy to do myself?

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Depending on how bad its burned and which one it may not.....the coil pack it self is also a possiblity

Posted on Feb 02, 2009

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What is the effect of not replacing valve seats that are due for replacement?


A common type of valve failure is valve burn, or burnt valves. Essentially this is caused by combustion gases escaping between the valve and valve seat when they are not sealing correctly. The hot combustion gases are forced past the valve which starts to burn away the edge of the valve, progressively getting worse the longer it is left without being rectified. Normally this type of failure affects the exhaust valves only, but it can also damage the intake valves.
A burnt valve will cause issues with your vehicle's performance and fuel consumption. Rough idle, reduced power, backfiring, and misfire are all symptoms of valve burn. If your engine is showing symptoms like these continued driving with a burnt valve will cause more damage to your engine, and will in turn cost more to repair in the long run.

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I have a 2005 9.3 arc and theirs a ticking noise coming from engine it idles rough and it burns oil what could it be


Ticking may be valve lifter collapsed. Rough idle and oil burning could be burnt valve and poor maintenece. Run compression test to determine condition of rings and valves.

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Son has a mazda protege dx runs rough when cold, backfires through intake, gasoline in oil, thinking idle air, but could it be injectors?


Gas in the oil can only get there threw the injector/s. One is stuck open. replace them all if it is worth the car. Back firing, I would check compression on the cylinders first, add a little oil first to all cylinders first, one or more cylinders are dry from the fuel, before putting any more money into it. Back firing threw the throttle body, could be timing or burnt valves.

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Why is my 1998 toyota corolla oil getting short


Is there any white smoke? Could be your valve stem seals. But the Toyota Corolla in this year's is known for burning oil. If you are having to add more than 1 quart per month. You may have a problem. Check for the obvious. Milky oil. Idle it to op temp and smell exhaust for burnt oil smell. Hit the gas...see any white smoke? Open your radiator cap after running and smell for exhaust... If all is well then you have a normal running toyota corolla. These cars are champs. They just tend to burn a Lil oil here and there.

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My '94 Escort lx keeps burning up the ATF. What's the cause likely to be?


Your transmission is failing. Your clutches are burnt. Your check engine light should be on by now. By now you should be experiencing rough gear shifts amongst other things.

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My car is using a quart of oil every thousand miles and there are no visible leaks


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A clogged air filter or faulty PCV valve will cause a higher rate of oil consumption, if those are good, I wouldn't worry too much about it. Just keep checking the level.

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My car seems to run for 3 seconds and dies, I have changed fuel filter just before problem started. After trying many times it will start, only to do same thing next day


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1 Answer

Gas in oil


Usually gas gets in the oil if you are having a hard time starting the vehicle, or turns over for a long period of time before firing. It floods the cylinders and bypasses the rings filling the oil with gas. You may want to change the oil and filter and see if this problem continues. Check your plugs, wires etc.. If it does then your rings may be shot not giving enough compression to the cylinder causing un burnt gas. Try a compression check and see if you have any bad cylinders. Depending on the vehicle 90-160 psi isnt uncommon. If there is a great differential between the cylinders you may have faulty head gasket, bad valves, or just worn rings.

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