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Fuel tanks can not be repaired. If one is found to be leaking or damaged it should be replaced before continuing to drive the vehicle. A proper gas tank inspection (https://www.yourmechanic.com/services/fuel-is-leaking-from-gas-tank-inspection) should be performed to ensure no other damage has...

Hello, thanks for writing in about your 1991 Volvo 740. I would suggest checking all of the speaker wire connections as these often times run underneath seats and sometimes have more than one connection to get to the stereo. It...

Hey there, thanks for writing in about your 1992 Volvo 740. There are many things that can cause a shake like a worn ignition system (https://www.yourmechanic.com/article/how-a-car-ignition-system-works) or broken engine mounts (https://www.yourmechanic.com/services/engine-mount-replacement). Being a '92, there is not an OBD-II connector,...

Hello. If someone has changed the wiring from its original path without using the proper wires or connectors, it could cause a short. The wiring needs to be checked for any breaks or loose connections in order to make an...

Hi There, A failing manifold gasket could certainly contribute to a problem with the engine starting, however this would not necessarily go away when it warms up since it would be a constant leak into the intake system, which would...

Hi there, thanks for writing in about your 1990 Volvo 740. The symptoms sound similar to a vehicle suffering from a boost leak or electronic air metering and fuel delivery faults. The vehicles do not have the new OBD-II ports,...

The fuel pressure on your 1992 Volvo 749 should be checked to make sure it is within proper specifications. If there is a clog or malfunction in the fuel system, the car may experience a poor running situation or may...