Crackling Noise on Acceleration

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Mar 11, 2009 | 02:19 PM

tp4pdb

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Joined: May 2005

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Crackling Noise on Acceleration

My 1993 3.0 Aero started making a crackling noise last week that sounds like its coming from the rear of the engine compartment through the cover. It seems to only make the noise when the engine is cold and accelerating from a stop. Just this morning the door ajar light started blinking in unison with the crackles. The light stayed off when the noise stopped.

The aero is staying put until I figure this one out. I am guessing it may be a short. Any ideas on what this specifically might be?

Mar 11, 2009 | 03:06 PM

96_4wdr

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Joined: Apr 2005

Posts: 5,720

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From: Washington state

rear door relay located in that area under the dash
rattles when the rear lift door or side door is ajar.
usual cause, lift door switch failure

mine sounds like a buzz saw, not had time to look at it. lift door switch is damaged

Mar 11, 2009 | 04:51 PM

Aeroman59

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Joined: Dec 2006

Posts: 830

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From: Kitchener,Ontario,Canada

Yeah. its likely the relay. mine does that when I have tried to open the side door and failed to close it properly due to ice. Also clean the side door contacts, they may be corroded.
Aeroman.

Mar 13, 2009 | 11:13 AM

VanGo

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Joined: Apr 2005

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From: Wichita

/\/\ I agree with the relay theory. A short would have likely blown a fuse.

Mar 14, 2009 | 04:54 PM

B Dobz

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Joined: Jan 2007

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The little silver electrical tabs where the sliding door opens need to be cleaned up and bent out alittle so they make good contact.mine did the same thing.

Mar 26, 2009 | 02:42 PM

coronado25

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Joined: Mar 2009

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That clicking relay

My 93 had the same problem cleaned contacts stopped for one trip. Its back as bad as ever. I took lower dash apart disconnected relay. Now all is fine.