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post #1 of 6 Old 03-17-2013, 05:05 PM Thread Starter
mslinger
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Engine hesitation

I have a 1979 cj7 with 304 if you increase speed gradually it does fine, but if u step on it it will spit and hesitate then pick up just had carb rebuilt Does anyone have any suggestions ? Thanks

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post #2 of 6 Old 03-17-2013, 05:14 PM
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Are you sure the accelerator pump is working? Look into the carb throat and open the butterflies. You should see a shot of gas come out. What you describe sounds like no acc pump.

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post #3 of 6 Old 03-17-2013, 05:41 PM Thread Starter
mslinger
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Quote:
Originally Posted by FernBchJeep
Are you sure the accelerator pump is working? Look into the carb throat and open the butterflies. You should see a shot of gas come out. What you describe sounds like no acc pump.
Thanks for the info we will try that
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post #4 of 6 Old 03-18-2013, 06:24 AM
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Quote:
Originally Posted by FernBchJeep View Post
Are you sure the accelerator pump is working? Look into the carb throat and open the butterflies. You should see a shot of gas come out. What you describe sounds like no acc pump.
Please do this with the engine off. Otherwise, you may be eating a backfire.
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post #5 of 6 Old 03-18-2013, 03:45 PM
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Quote:
Originally Posted by jeepdaddy2000 View Post

Please do this with the engine off. Otherwise, you may be eating a backfire.
Figured that went without saying so I didn't mention it. You probably wouldn't see the acc pump squirt with it running anyway.

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post #6 of 6 Old 03-19-2013, 06:03 AM
jeepdaddy2000
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Originally Posted by FernBchJeep View Post
Figured that went without saying so I didn't mention it. You probably wouldn't see the acc pump squirt with it running anyway.
You would be amazed what folks with no experience will do. I always try to reread my posts to make sure that I include all those "be careful" and "insure that...." disclaimers.
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