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post #1 of 3 (permalink) Old 05-04-09, 11:09 AM Thread Starter
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mad '03 Taurus Confusion

Have a 2003 Taurus that cuts out while driving.
The check engine light is on, brought it in and the code pulled up as this:
"P1336 CKP System Variation. Not Learned"
Cant seem to figure out what that means.
This is what the car does. While traveling back from Iowa, we encountered 6deer on the interstate (at night). Traveling at 80 mph we had to slam on the brakes and swerve to miss bambi and his friends. Within 10 miles of that, still going about 75-ish on the interstate, the car jerked, pretty hard, all the gauges dropped down, theft light and battery light blinked, and everything went back to normal. It was like all power was cut. It did this a number of times. We got the car off the interstate and off the road. Once on the side of the road, it completely died. It started just fine, but as soon as any pressure was put on the accelerator, it would die. Finally got it to move by just holding the gas down once it was in gear, even then it was really jerky. In a parking lot where we made it, drove it around in circles, parked it, turned it off. Started it, and just revved the engine up to 3000/3500 rpms a few times, everything seemed fine then. Started driving for home, and each time it cut out, just floored the gas and it would stop. Does it occasionally now, but just have to press on the gas and it goes back to normal. What gives??? Any thoughts as to whats causing this??? Same error code is being brought up still.

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post #2 of 3 (permalink) Old 05-05-09, 09:37 AM
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Re: '03 Taurus Confusion

Let me start out by saying your lucky to be alive. 80 at night on the interstate is a BAD
idea. ( stupid idea ). You may not be that lucky again. Anyway back to the problem at hand. Reading your post you say your gauges and battery light blinked. That tells me you had a complete power loss as in diconnected battery. When that happends the ecm loses parameters and has to learn all over again. Usually after 4 complete starts and run time. That code is triggered by a loss of connection to the CKS or CMP senser. Also it
came be caused by a open or damaged wire in the harness to the ecm. If your ecm does
not relearn a scan tool will have to be used. I'd say this was caused by slamming on the
brakes at 80 and something moved or got ripped out. Every wire connection under the hood will have to be checked for tightness, broken,or chaffed connetions. At those speeds with that hard braking the engine actually stalls and restarts in a few seconds.
This gives the ecm a good slap up side the head and takes a while to recover. I wonder
how your transmission made out let alone what brake parts got bent. Good luck.
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post #3 of 3 (permalink) Old 05-05-09, 11:18 AM
Join Date: Mar 2003
Location: Illinois
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Re: '03 Taurus Confusion

If the lights are dropping out and the instrument cluster waring lights come on the PCM is rebooting. You are loosing all 12V power somewhere. I would check the alternator and battery cables.
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