Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 4/2006 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

fairly technical flywheel sensor question 850 1994

Our local non-volvo small service center is helping us is trying to start our remanufactured motor. They have power to the injectors and to the coil. The crankshaft sensor checks out ok. NAPA tech line provided them a diagram of what the electrical pulse should look like on the scope for the flywheel sensor when the engine is cranking. They did not get any signal from the sensor. Great, they thought they found the problem, so they ordered a new one....same thing with the new one, no signal. He took a non volvo flywheel sensor and with his hand manually moved it back and forth his scope to check to make sure that was working and got a signal but when he does it to either the old or the new sensor there is no signal. Could it be that both sensors are bad or does any one have any experience with this or what else we can check. thanks, phil







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.