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Old 09-12-2010, 09:55 PM   #4
Too Many Old Cars
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Join Date: May 2008
Location: Salt Lake, Utah
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Re: van misses at 30 -50 miles an hour no load

Quote:
Originally Posted by Too Many Old Cars View Post
I have exactly the same problem on my 15 passenger Club Wagon (V10). I cleaned the Mass Airflow Sensor and it ran more smoothly for a while. I also replaced the fuel filter and that seemed to help for a while. The problem always seems to return, however. I have not replaced the computer but will try that as well.
It turned out after dealing with this problem for years (and going to four different mechanics that all charged $400+ to do something that didn't help) that it was an ignition coil on the number seven spark plug. Replaced the ignition coil. Problem is finally solved.
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