Console/dash noise disappears when a/c turned on - 2003-04 Mach 1 Registry Owners Club

04Mach1 · 04-29-2005, 10:17 AM

I've searched these boards but am not sure my problem is related to them.

While driving on the highway, I'm hearing a console/dash noise above the climate controls which then disappears when the a/c is turned on. The noise sounds like a low pitch rattle which is intermittent. If you shake a coin in an empty plastic coke bottle, you'd get the same sound.

I'm not talking about the grind, clunk or thump that some report when the a/c is turned on. It's a rattle noise while the a/c is off.

If you know what this is and if there's a tsb for it, please let me know.

canadianmach1 · 04-29-2005, 06:28 PM

not sure what it is but a friend of mine has the same problem

Warp1 · 04-29-2005, 08:24 PM

Is it when the AC is on only, or also with just the air blowing without the AC compressor running?

04Mach1 · 04-29-2005, 09:52 PM

Neither, the fan could be either on or off and the a/c is off.

Once I turn on a/c the rattle disappears.

luvmynad · 04-30-2005, 03:39 PM

the a/c and air controls are vacumn operated. it sounds like one of the blend doors is sticking or is experiencing a blockage to prevent the door to open and close properly.

04Mach1 · 05-01-2005, 06:47 PM

Thanks, I would sure hate it if the dealer had to rip the dash apart to solve it, if that's the problem. It doesn't sound like a vent problem though unless I misunderstood your post.

Any others?

04-29-2005, 10:17 AM	#1
04Mach1 Registered User Join Date: Oct 2003 Location: Toronto, ON Posts: 129	Console/dash noise disappears when a/c turned on I've searched these boards but am not sure my problem is related to them. While driving on the highway, I'm hearing a console/dash noise above the climate controls which then disappears when the a/c is turned on. The noise sounds like a low pitch rattle which is intermittent. If you shake a coin in an empty plastic coke bottle, you'd get the same sound. I'm not talking about the grind, clunk or thump that some report when the a/c is turned on. It's a rattle noise while the a/c is off. If you know what this is and if there's a tsb for it, please let me know.

04-29-2005, 06:28 PM	#2
canadianmach1 Registered User Join Date: Mar 2005 Location: edmonton canada Posts: 765	Re: Console/dash noise disappears when a/c turned on not sure what it is but a friend of mine has the same problem

04-29-2005, 08:24 PM	#3
Warp1 Just haunting about again Join Date: Apr 2004 Location: Tulsa, OK Posts: 726	Re: Console/dash noise disappears when a/c turned on Is it when the AC is on only, or also with just the air blowing without the AC compressor running? __________________ Sold Black '03 Mach1, 5 spd, IUP Mods: MGW (red handle) shifter, Steeda Sport springs, Streetsmart (MRT) CAI, 1/4" raised shaker, Silverstar headlamps, and darkly tinted windows. My Mach before the springs My Mach's first day w/Steeda Sport Springs RCode

04-29-2005, 09:52 PM	#4
04Mach1 Registered User Join Date: Oct 2003 Location: Toronto, ON Posts: 129	Re: Console/dash noise disappears when a/c turned on Neither, the fan could be either on or off and the a/c is off. Once I turn on a/c the rattle disappears.

04-30-2005, 03:39 PM	#5
luvmynad Guest Join Date: Oct 2003 Location: oceanside, CA Posts: 222	Re: Console/dash noise disappears when a/c turned on the a/c and air controls are vacumn operated. it sounds like one of the blend doors is sticking or is experiencing a blockage to prevent the door to open and close properly.

05-01-2005, 06:47 PM	#6
04Mach1 Registered User Join Date: Oct 2003 Location: Toronto, ON Posts: 129	Re: Console/dash noise disappears when a/c turned on Thanks, I would sure hate it if the dealer had to rip the dash apart to solve it, if that's the problem. It doesn't sound like a vent problem though unless I misunderstood your post. Any others?

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