CJ7 stalls when I slightly hit the gas - JeepForum.com
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post #1 of 4 Old 08-16-2017, 05:47 PM Thread Starter
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CJ7 stalls when I slightly hit the gas

I have a 1981 CJ7 Laredo. It has a 258 straight 6 4.2L in it. I replaced the carb and upgraded to a DUI HEI distributor about 3 months ago. I had an exhaust manifold vacuum leak and it would die when he the throttle was pushed to the floor. I changed manifold gaskets and it was running great after. The other day it stalled on me. The jeep cranks, idles great, it accelerates great except if I slightly press throttle it does. I can put it to the floor and it revs great. Only does when I barely accelerate slightly. Any help would be great

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post #2 of 4 Old 08-16-2017, 05:55 PM
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1974 CJ6 
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What carb?

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #3 of 4 Old 08-16-2017, 06:13 PM Thread Starter
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Carter 2bbl
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post #4 of 4 Old 08-17-2017, 07:37 AM
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1956 CJ5 
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HI there is NO vacuum at the exhaust manifold.. Though it well effect the way the motor runs you just had an exhaust leak.. usually a stumble or stall when barely touching the pedal is a accelerator pump problem.. tho sometimes timing well do that as well. Look down the inside of the carb (motor NOT running ) and see if you get a shot of fuel when you barely move the linkage. if not a good shot then I'd say accelerator pump (its inside the carb)..
good luck
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