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-   -   Engine bogging part II - Help needed (http://forums.mustangworks.com/showthread.php?t=4042)

Harry 06-26-2001 09:25 PM

Engine bogging part II - Help needed
 
A couple of weeks ago, my engine started bogging really bad. It would idle just fine, but under a load it just would pull, and it barely ran. Well, under the suggestion of a couple of folks here, I changed the power valve to a 4.5, and I replaced the spark plugs (the old ones were fouled out, even though they were only about a month old).

Well for a couple weeks it's been running great! But coming home today, it started bogging again, then it just got real bad real quick, and I had to pull to the side of the road and have it towed home. When I try to start it now, the starter turns it over, but there is no trace of it even trying to start. What could have gone wrong that it went bad so fast? I haven't had time to pull a plug yet, so don't know the condition of the plugs that are in it now.

Any suggestions? Could it be fuel pump? Electronic module? Should I throw away the holley carb and get an Edelbrock? Any suggestions would be appreciated.

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See my 1985 Mustang GT

smokedchevy 06-27-2001 02:07 AM

Sounds like big time carburetor problems. How old is it and what kind of fuel system are you running? My 65 stang has had it's share of carb problems till I replaced it. It seems as if your fuel pump is overpowering your floats. Can you smell gas? Did it blow black smoke when it ran bad?

Harry 06-27-2001 07:23 AM

Well the carb is a Holley 80457. The jets are 65s and the power valve is a 4.5. Other than that, it is a stock fuel pump and intake. I did notice a huge gas smell when I would shut it off before. I am not sure if it's as evident now that I put the new power valve in. No black smoke that I could tell, but wasn't really watching for it. I bought the carb last year, and it probably only has about 6k miles on it, if that many.

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See my 1985 Mustang GT


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