Question about 1987 Jeep Cherokee

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1987 Jeep 2.5 miss fire from 2200 rpm to 3200rpm

Runs ok at other rpm

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: 1987 Jeep wrangler fires up, but stalls after 1 or 2 seconds

when you take alternator out of play. the vehicle runs. i would be replacing the alt. these units are complex containing modules, regulators that can give you erratic problems, but i think u answered your own question alternator


hope2help shack

ps. good mechanic wont leave you stranded

Posted on Apr 17, 2009

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SOURCE: 03 JEEP wrangler Rubicon 4.0L missfire on cylinders 1,2, and 3!

bad fuel pump can cause this or plugged fuel filter but i believe they are one unit

Posted on Jul 30, 2009

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2 Answers

Acceleration problems


If I were going to guess, which is apparently what your mechanic is doing, I would say the problem is in the ignition coil. Ignition coils work ok at low rpm but as the rpms increase the coil will short out and cause the car to miss.

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Check the following items:
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I have a 1987 Susuki Samurai, 1.3 engine. Cold start is idles at 2000 rpm up to 2200 rpm. Is this normal? Its seems a little fast. How do you adjust the cold fast idle speed? Thanks, Randy


Yeah it sounds kinda high. There is no adj except for the idle screw on the throttle, the computer does the rest, if it has one. If not, then you can adjust it some how. If carbureted, check for 2 little screws in the front, and check the choke, If throttle body, then just the idle screw, the idle should be around 1000. Hope this helps.

Jul 03, 2010 | 1987 Suzuki Samurai

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03 JEEP wrangler Rubicon 4.0L missfire on cylinders 1,2, and 3!


bad fuel pump can cause this or plugged fuel filter but i believe they are one unit

Jul 30, 2009 | 1998 Jeep Wrangler

1 Answer

1987 Jeep wrangler fires up, but stalls after 1 or 2 seconds


when you take alternator out of play. the vehicle runs. i would be replacing the alt. these units are complex containing modules, regulators that can give you erratic problems, but i think u answered your own question alternator


hope2help shack

ps. good mechanic wont leave you stranded

Apr 17, 2009 | 1987 Jeep Wrangler

1 Answer

Engine miss above 2000 rpm


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Oct 22, 2008 | 1990 Jeep Wrangler

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