DIY: Volvo 850 T5 Crankshaft Sensor Testing

Difficulty Level

Tools/Supplies Needed:

• multimeter

Procedure:

• open the hood of the vehicle
• unplug the harness going to the crankshaft located under the distributor cap (two prong plug)
• a multimeter is required for this test
• set the ohm meter to the thousand increment setting
• put the test probes on the terminals inside the plug on the crankshaft sensor side
• the reading should be between 200-500ohms
• if the reading is not within the specified range, the sensor needs to be replaced

Replacement:

• unplug the harness going to the crankshaft located under the distributor cap
• remove the one 10mm bolt on the top of the sensor
• pull sensor straight out
• installation in reverse of removal

Video tutorial on how to test the crankshaft sensor of a Volvo 850 equipped with a 5 cylinder. If your vehicle has no spark, hard starts, or is running rough, this could possible be the culprit of the problem. A similar procedure possibly applies to S70 and V70 models as well. This particular tutorial was done on a 1996 Volvo 850 turbo.