BAD backfire HELP!!!

delldoe said:

So hears the deal, pulled out onto the highway and smashed it 1st through 3rd and right as I let the clutch out into 3rd my car started backfiring real loud. "sounded like a shotgun going off" turned the car off and coasted off the road. Now it won't even start and is backfiring through the intake exhaust. got a po340 code which is for the camshaft position sensor. Put in a new one, still won't run. changed out the crankshaft position sensor and have same results. Has anyone had this happen to them??? let me know what you think

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I have no idea man.. but if you figure it out... please share with us.. Cause that is the strangest thing ive ever heard. good luck on it

what year is the car? if it's a 2002 up, it is an alternator problem and try and buy oem Ford and NOT some parts store crap wth the "lifetime warranty" type sales pitch

pretty common issue too, do a search on this and you'll sea.....

I didn't experience the way you got to your problem, but I had one of the many 2002 alternators that died an early death...fortunately got it replaced under warranty. They also swapped out my battery for free...

I think I might have had the same kind of problem. The code kept coming up and said crankshaft position sensor. I was pulling my hair out trying to fing out what it was and it ended up being the wiring on the CSPS ( the connector to be exact ) was the slightest bit loose and woulld make good contact sometimes and sometimes not, but while I was serching for this problem I talked to quite a few mechanics and bad coils could also cause this or (1 bad coil, 2 bad, 3 bad ect.) I could only get the car to rev to about 5300 rpm then it would backfire between 5300 and 5900, never got it to go past 5900 ( professionaly built motor to rev to 7400 rpm ) and my boost was all f'd up on the street when under a load. I would mash the gas and it would sputter, backfire and a couple times even shut off, but it would always restart easy. Havent had it tuned again since weather is bad now but we had 1 nice day and I took it out fora ride after fixing the connector and it ran great with full boost and no hesitation at all. But it took me about a month or so to track it down I tried all diffrent things. but just remember if it isnt the connector it CAN be a bad coil or so. I did tons of reserch on this. Hope this helps. Here is a vid of my car on dyno backfiring at about 5900rpm

http://www.youtube.com/watch?v=Ol3v0eDIH7E

yea I had the same thing happen to me and it was the Alternator. bought a new one and the prob went away!