M60 Problems

[crazyrobbery]

OK so leaving work cruising at highway speed. In top gear at partial to full throttle the car is stumbling.

1. It will not accelerate
2. the exhaust gets loud but revs do not climb
3. the engine seems to not react to any throttle input if there is a load on the car

The problem has been on going for the past two days. It is driving me crazy.

Recent maintenance

1. All intake manifold & PVC rebuilt
2. O2 sensors replaced last feb with factory replacements
3. Fuel filters
4. Spark plugs
5. Air filter

My thoughts on cause of Problems

1. MAF (Strong feeling on this one, mainly because i unpluged the sensor and there is no change with the problem) Meaning it runs like crap with or without the sensor

2. Possibly weak Fuel pump (Original)
3. Fuel Regulator ?

I have a check engine light and i read the codes with my peak reader

1. O2 sensor codes
2. MAF codes

Cheers Guys,

Thanks in Advance

Robbery

[crazyrobbery]

So i bought another MAF (which did not fix the problem)

Finally got the day off from work so i could properly diag.

Found oil spotting on drivers side.

After looking around noticed that one of the rubber grommets under valve cover nuts was missing.

Had one in the garage installed no more problems.


Guessing engine was looking pressure....


Regards

Robbery