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low engine pressure

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Symptoms of a Bad or Failing Manifold Absolute Pressure Sensor (MAP Sensor)
Common signs of manifold absolute pressure sensor problems include excessive fuel consumption, lack of power, and failing an emissions test.

Related questions

Question
Had a Low Engine Pressure light and now the car won't start.
The low pressure light is your oil pressure for the engine and if you loose the oil pressure to all the internal bearings can cause major engine damage. You will need to have your engine checked to see if this...
Question
Check Engine light on; engine revs and has reduced power
Your 2003 Envoy seems to have quite the variety of symptoms, and these could indicate a variety of problems. The smell of gas may be due to a fuel leak or may be an issue with the EVAP system. Or...
Question
Low oil pressure noise some noise front of the engine 2001 Mercury Grand Marquis
Hello - yes, low oil pressure and high miles can certainly product a metallic clattering from the timing chain set, as well as knocking noises from worn connecting rod bearings and crankshaft main bearings. If you are getting low oil...
Question
Why am I losing compression on cylinder #4 on my 2006 Mazda 6
Hi there. If you are feeling air pressure coming out of the engine in this area then you have a problem with warpage or a crack that is not seen. Once everything is put together and torqued then you should...
Question
Truck had a lot of smoke coming out the day before and it kept shutting off. Now wont start.
Hi there. Depends on what type of smoke was coming from the engine and where it was coming from. If the smoke was coming from the exhaust pipe, then either fuel or oil has entered into the exhaust system through...
Question
I am losing compreshion on all my cylinders 2005 Dodge RAM 1500
Hi there - you don't indicate your mileage, but low compression may be a normal result of a high mileage engine, or a problem due to abnormal wear. Oil breakdown can cause excessive piston ring wear. Extremely lean mixtures can...
Question
1 cylinder is down on compression 2005 Subaru Legacy
Hello - there are several possible causes of low compression on 1 cylinder only. Causes include: burned valve, worn piston rings (not common for a single cylinder), worn camshaft lobes (not allowing full air charging of the cylinder), valve adjustment...
Question
Is my car toast?
having low compression in one or more cylinders with oil fouling of plugs will indicate a bad piston or piston rings. If the engine is more expensive to replace then the prive to repair and is over the value of...
Question
Help me please
If you have one cylinder that is low on compression and leaking oil into the cylinder then you have broken piston rings or a hole in the piston. The engine should have a cylinder pressure test to see if you...
Question
I have a 2006 Ford F-150 triton V-8 one of the cylnders is not getting compression
If you have one cylinder not producing compression then you need to find out why it is not getting compression first. You should have a cylinder pressure test to see if you have excessive air leaking due to a bad...
Question
Piston ring/ spark plug
The piston rings in these engines are very weak to start with and now that you have over 265k miles is telling me your compression is getting low in the engine due to the piston rings are leaking oil and...
Question
No valve compression
On this engine when the crankshaft bolt broke then the timing would of got out of position and the pistons would have hit the valves and bent them. Internal engine damage is most likely and the engine would need to...
Question
There's no oil in my car and it's making a loud noise when I drive
Try to add about 3 to 4 quarts of oil to bring it up to full mark and then see if engine noise goes away. You may not have damaged engine yet. If noise continues after adding oil then you...
Question
2003 Chrysler seabring, was a pop then black and grey smoke rpm gauge went crazy and the car cut out. Power went completely and sh
Without knowing exact cause of the oil leak since it sounds severe there would not be any way to tell you what happened. If you leaked oil onto the belts of the alternator then it may slip and cause no...
Question
My car makes a loud knocking noise when I accelerate put four quarts of oil knocking now comes and goes
If you had to add 4 quarts of oil when you noticed the knocking sound then the engine bearings may have already been damaged. The noise is most likely coming from crankshaft and rod bearings. You should have a mechanic...

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