Is it the rpm sensor or the cam location sensor on my 94 850

Question

Standing beside the driver front wheel, I look at the engine block. Just to the right and above the distributor is a round cover held on with two screws, with a single wire that goes towards the distributor.

Is this the cam location sensor that you get a heat failure with (car stalls and then will not start until it all cools off)?

My copy of Haynes has the illustration (5.47 on page 2B-6) That has the cam sensor (14) line pointing down toards the distributor, while there's a line pointing at where the sensor is supposed to be that says that its the rpm sensor (16).

To top things off, I don't have a link to thae "brick" website that deals with repairs so I can figure out what I need to do.

Also, has anyone had any experience with a used cam sensor replacing the one that's heat-sensitive. I'm looking at about 250 Canadian for a new one. (OUCH! --

Tim.. · Accepted Answer

"byrocat"  wrote in messagenews:

byrocat · Answer

JUzt in case someone is giving this a quick scan.I've got two distinct non-run behaviors that seem to be possible the same item.

If the car has been sitting in direct sunlight for a couple hours, I can make a trip and get out to do some shopping. The restart for the trip home results in a almost-run burble and then everything lights up and I now have to go for a can of pop and then more shopping until everythign cools down.

The second is when I'm in traffic and at an idle, burble and then dead. Sometimes, an immediate restart works and sometimes I'm there for a while.

However, lugging around a can of comressed air and blasting the sensor plate and area around and giving things a retry is a good idea.

Of course, Murphy's Laws of Testing will apply: when ready for a failure to diagnose the reason for the failure, the failure will not occur.

Is it the rpm sensor or the cam location sensor on my 94 850

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