The intake manifold gasket can leak and cause the Check Engine Light to illuminate, idle speed to be erratic and a hard starting engine. A hissing noise can often be heard from the gasket area when the leak is bad enough. Removal of the intake manifold is needed to replace the gasket.
Car problem reports
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Newest reported 1996 Volvo 850 problems
One or both of the front wheel bearings may fail resulting in a rumbling noise from the front wheel area when driving over 25 mph.
It's quite common for the the fuel pump to fail, causing a no start condition. The engine will crank over but it will not start.
To verify this the fuel pressure and electrical power to the fuel pump should be checked. If the pump is getting power and there's no pressure, replace the pump. If it isn't getting power, check the fuel pump relay circuit.
An abnormal vibration maybe noted due to a worn upper and/or right front engine mount. Replacing all worn mounts may be necessary to correct this concern.
The turbocharger return pipe seal may develop an oil leak. The leak can begin very small, but will eventually progress into a large leak. Our technicians recommend having this repaired at first signs of leakage.
A knocking noise over bumps from the front end can be caused by a worn out sway bar link rod. Replacement of the rod will be necessary to fix this issue.
The electronic portion of the ignition switch may malfunction, causing some dash lights to stay on. When this happens, a wiggle of the ignition key should temporarily return everything to normal.
If you hear a loud knocking noise from the rear of the car while driving then there's a good chance the rear upper shock mounting plate is broken. We suggest replacing both rear upper shock plates at the same time because the other one is likely ready to fail as well.
You may experience just a check engine light, but you may also have an engine that will not start (won't turn over) and erratic transmission shifting. A diagnostic check will turn up a 3-1-3 code in the transmission control module for the gear position sensor. Replacement of the sensor will be necessary to address this issue.
Vibration from the rear of the car when braking can be caused by corroded rotors, especially when braking going down hill. The rotors will need to be replaced and special shims installed from Volvo to prevent this from happening again.