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Misfires, loss of power

Tiny
WORMDIRT
  • MEMBER
  • 1994 JEEP GRAND CHEROKEE
  • 5.2L
  • V8
  • 4WD
  • 220,567 MILES
My vehicle will not idle correctly. It has loss of power, it hesitates and cuts out at 50 mph. Then when it idles down it almost shuts off.
Thursday, August 15th, 2019 AT 3:11 PM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

How old are the tune up parts?

When it shuts off, does it start right back up?

https://www.2carpros.com/articles/engine-stalls

https://www.2carpros.com/articles/stall-at-idle

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Roy
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Thursday, August 15th, 2019 AT 3:37 PM
Tiny
WORMDIRT
  • MEMBER
  • 3 POSTS
I just installed a new computer, new plugs, I cleaned the throttle body, and IAC. I don't know how old the distributor cap and the plug wires I just bought about a month ago.
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Thursday, August 15th, 2019 AT 4:10 PM
Tiny
WORMDIRT
  • MEMBER
  • 3 POSTS
Yes it starts right back up, but it misses.
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Thursday, August 15th, 2019 AT 4:11 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would change the cap, rotor and wires.

I would also do a compression test to be sure all cylinders are working correctly.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy

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Thursday, August 15th, 2019 AT 4:18 PM

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