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Why does your valve train rattle under load or at fast Idle on a 1987 ford bronco II?
Wiki User
∙ 16y ago
When was the oil last changed? The 2.9 uses hydraulic lifters, which are self adjusting. They use engine oil pressure to stay pumped up. Try this web site for more info. Low oil pressure can cause it. http://www.therangerstation.com/
Wiki User
∙ 16y ago
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Diagnose engine rattle on light throttle?
Valve train clatter.
Why is Rattle coming from valve cover?
Loose, broken, or worn valve train component. Remove the valve cover to find the problem.
Why does PCV valve rattle?
It is supposed to rattle when you shake it. if it does not, it needs replacing. The rattle you hear is the check valve.
1989 Chevy Celebrity PCV valve stuck?
When you shake the PCV valve it should rattle. If it does not rattle then it is probably stuck and should be replaced.
My 1997 Chevy cavalier has a rattle at valve cover and the AC only work well when driving. The rattle seems to be in the area what looks like where the pcv valve would be located with a short hose?
My Cavalier doesn't have the same engine yours does (mine's the 2.4), but if you really have a PCV valve the springs in them can go weak and they will rattle under heavy vacuum conditions. Mine's been rattling lately as well, I just haven't crawled in there yet to find the valve...
Where is PCV valve located on 1987 Ford bronco?
The pcv is located on the passenger side of the motor, under the edge of the intake manifold, in the back.
Can you shake a PCV valve to tell if bad?
No, some rattle is normal.
Why PCV valve rattle on Monte Carlo?
That is normal. It means it is not stuck.
Where is the cold start valve 1990 5.0 bronco?
Cold Start Valve. Cold start valve. I do not believe there exists a "cold start valve"
What are symptoms of a bad PCV valve?
valve should rattle when shook, and when engine is started it should have a good suction.
How can you tell if a rocker arm is loose?
Noisy valve train. Remove the valve cover and inspect the valve train.
Where is the egr valve on a 1986 ford bronco 2?
Under the left hand 'Smith' cover you should be able to see a small flap, sometimes this can be obscured by the GCV unit's venting pipes in which case just locate it by feeling around. Inside this flap is a button, push this and it will release the egr valve socket under the dash. The valve is in this.
