1998 Jeep Cherokee Loud Noise

Tiny
HYDRASHOK
  • MEMBER
  • 1998 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
OK, here's one that has everyone stumped. Backed into the driveway and turned my 98 Cherokee off. Keys in my pocket. Head a loud noise like a leaf blower of shop vac. Thought it was my neighbor then realized it was my Jeep! Opened the hood and the noise sounded like it was coming from somewhere near the firewall. No fluids leaking that I can tell and all are at proper levels. Remember, the ignition is off. After about 20 minutes it's still wailing away. I decided to unhook the battery and the noise slowly died down then stopped. Hooked up the battery and no noise but now it won't turn over. Lights, horn etc. But no indication of starting. Any help is GREATLY appreciated.
Bob
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Monday, October 19th, 2009 AT 9:03 PM

6 Replies

Tiny
CJ MEDEVAC
  • EXPERT
A/C unit spring a leak
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Monday, October 19th, 2009 AT 9:23 PM
Tiny
HYDRASHOK
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Well that is a possibility. Darkness decended before I could investigat further. But this was more of a very loud sound. Not a hissing normally associated with an A/C leak. The only way I can describe it was like I said "standing next to a leaf blower or shop vac." Also, why would it stop when I disconnected the battery? And why won't it turn over now? BTW-the starter is less than 6 mo. Old.
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Monday, October 19th, 2009 AT 9:44 PM
Tiny
CJ MEDEVAC
  • EXPERT
Blower motor on HVAC?
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Monday, October 19th, 2009 AT 10:14 PM
Tiny
HYDRASHOK
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Actually Turddog your AC answer seems to be the most sensible. I had a new compressor installed 2 years ago-$800 w/ no warranty-$1400 w/ warranty. Something about flushing the entire system was the difference. It never did work "quite right". Noticed the last couple of months that it would squeal like a Banshee when first engaged. If a line blew near the starter, which looked to be where the sound was coming from, its possible the ignition wires got moisture which would explain the no start issue. That noise though, nothing like I've ever heard. And am still puzzled why it would stop after disconnecting the battery. And as long as it continued it should have expelled all the freon. Another thing I just thought of-if the moisture shorted one of the thousand fuses that control another thousand things and are all linked together in some mad scientist way!
In any case thanks for your input. I have a friend and a flatbed coming in the morning so we can get it on a rack and see whats up. Thanks again!
Bob
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Monday, October 19th, 2009 AT 11:20 PM
Tiny
CJ MEDEVAC
  • EXPERT
Hope you get fixed with little expenditure
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Tuesday, October 20th, 2009 AT 9:28 AM
Tiny
HYDRASHOK
  • MEMBER
Well it turns out that the problem was the starter. It seems that a small amount of oil from the filter, which is directly over the starter-not the best place, had leaked onto the contacts shorting it out. Since it is directly connected to the battery that's why it kept spinning even with the ignition switch off. That was the loud "leaf blower" sound. Good news is the starter was still under warranty and my buddy only charged me $68 for the tow and labor. A/C appears to be OK. Thanks again for the help Turddog.
Bob
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Tuesday, October 20th, 2009 AT 11:47 PM

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