Question about 1994 Volvo 940

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Car cranks but doesn't start - 1994 Volvo 940

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Hi. This could happen for sevaral reasons. 1. not enough fuel received in piston chamber. 2. ignition not sending spark to plugs. 3. Intake not suctioning air for fuel to ignite, making the mix richer. These are the essential ingredients to start the engine. Usually number 3 is the most common on these cars, because for a weird, unexplainable reason, the piston rings tend to wear and tear more than usual, diminishing the compression ratio in the chamber, or easier, not suctioning air into the chamber for the mix of air and fuel to ignite. For a good result and less worries, you need to overhaul the engine. in this way you will be running an old engine, that is practically new due to the parts.

Posted on Aug 23, 2008

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I just fixed a problem like this! Check the crank case position sensor, this is a magnetic sensor that bolts into the bell housing on the back side on top of where the transmission connects.

If you check your codes you will see a 2-1-4 when the the selector pin is in the #6 position. The cable can get very frayed and cause no start, or the car will just just die while driving.

Good luck

Posted on Aug 26, 2008

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