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Darn crank sensor.....

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Posted by: unity

So today I was zooming along just find when I noticed my car hesitated for a second, like it slipped a gear or something while going about 35 with OD off. Actually for the past three weeks the car felt wrong.

Anyway, so today I then came to a stop and that was that. I press gas, no go. Car wont climb above 600 RPM and as I apply gas it wants to stall. It was JUST like I had the intake tube off. The smell of fuel was strong.

With the little power I had I got it to the side of the road and out of the intersection. It stalled, but I got it started again and pulled into a lot.

I pop the hood expecting a major vacuum leak - nothing noticeable. It was running fine at idle but any climb in RPM would result in a near stall.

So I turned it off to try restarting it. Nothing, turns over but no go.

As a last idea, I do the unplug/plug of the crank position sensor and all is good. Fires right up and plenty of power.

Just thought I would share. The general idea I have read in the forums many times is that the car will run fine with a failed crank position sensor once its started, but will easily cause a no start issue. I think I even read you can unplug it once the car starts. Seeing as this is what the engine reads for timing, I find that odd.

Anyway - stupid sensor! Freaked me out. Now I know what I will be doing next weekend......

Posted by: vr4

at least your poor connection didnt do this....

poor connection on #5 injector reared its ugly head at 180+ mph. (private race track in mexico of course)

Posted by: unity

What were you driving at that speed! lol The mark, no, the Cobra, no, the GT then? I thought those topped out at 180.

Posted by: vr4

Quote:

Originally Posted by unity

What were you driving at that speed! lol The mark, no, the Cobra, no, the GT then? I thought those topped out at 180.

the vr4. cobra gets scary at 140.

stock top speed is 161. mine is slightly modded. about a second and 10 mph faster than stock in the 1/4

Posted by: billcu

That's good info to know Unity. Thanks.

I never heard of that before. I always thought that the crank sensor problem meant no starting period.

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