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1965 Ford Mustang misses at acceleration

Tiny
KENPURL
  • MEMBER
  • 1965 FORD MUSTANG
  • V8
  • 2WD
  • AUTOMATIC
  • 1,500 MILES
When accerlaerating quickly the car misses, but runs fine at all other times. I checked timing. It's o.K. I was thinking it may be the vacuum advance isn't working properly, but don't know how to check it. Can you help please.
Tuesday, May 20th, 2008 AT 1:29 PM

3 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
What about the accelerator pump in the carb? Thats where I would look firs.
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Tuesday, May 20th, 2008 AT 1:33 PM
Tiny
KENPURL
  • MEMBER
  • 2 POSTS
Actually, I had replaced the accelerator pump in the carb a month ago. Thanks.
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Tuesday, May 20th, 2008 AT 2:39 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
To check the vacuum advance. Remove cap and install a vacuum pump to the advance and apply vacuum to it and see if the advance moves, also make sure it holds vacuum. I would also recheck that accelerator pump and make sure it did not malfunction.
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Tuesday, May 20th, 2008 AT 3:15 PM

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