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1998 Cherokee laredo NO POWER GOING UP AN ORDINARY NEIGHBORHOOD HILL

Tiny
HSPHIGI
  • MEMBER
  • 1998 JEEP GRAND CHEROKEE LAREDO
  • 130 MILES
1998 cherokee laredo 6 cyl, 130K. Had for 2 yrs, engine strong, decided to check plugs anyway-worn to nubs. Replaced plugs, cap, rotor, wires. Engine started right up and ran smoothly-but-NO POWER ON HILLS OR ACCELERATING ON FREEWAY!Big bad immediate difference! Replaced with a second set of everything but not wires-no difference. When forced to accelerate, it shifts down very oddly. Gas mileage unchanged, no misfiring symptoms, idles normally. Note: car has always had a cat conv. Rattle, but always passes emissions. Also, distributor will only rotate a max of 1/8" with bolt loosened. We were very careful noting #1 wire into distributor. Still, possible we screwed up? Ideas?
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Monday, March 19th, 2012 AT 2:37 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If it ran ok before then check for a clogged converter and fuel pressure. If it has 15' of vacuum or below suspect a cloggedconverter. If you pulled the distributor out then there is a certain way to align it andit may be misaligned. But recheckyour dist to make sureyou didn't put the plug wires in one hole off.
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Monday, March 19th, 2012 AT 3:11 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This may help
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Monday, March 19th, 2012 AT 3:16 PM

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