1994 Toyota Previa Repair Question
Topics covered: Engine, Oil pump, Oil pressure.
Mileage: 200,000 miles.
Mileage: 200,000 miles.
Asked on January 7, 2012
1994 previa. Hard knocking when foot on brake and in drive or reverse. Replaced spark wires, rotor, and cap
Think oil pump?0
Asked by Cornbread777Answer
Replied on January 7, 2012
If you suspect the oil pump, rent or borrow an oil pressure gauge from a parts store. remove the oil pressure sending unit (lower side of the engine by the oil filter) and install the pressure gauge. Start the engine and check the pressure reading. Should be at least 30-35PSI.
Replied on January 7, 2012
Where is the knocking coming from?
If external, I would suggest checking the engine mounts.
Oil pump would not cause knocking, especially when stopped.
Replied on January 9, 2012
Unless it caused a spun bearing.