Strange popping noise - 2003-04 Mach 1 Registry Owners Club

65fastback2+2 · 10-12-2006, 11:42 PM

So far, it only does it when i have defrost on with it going to the feet as well. Theres this pretty loud popping noise about every minute or two....you can sorta feel the pop with your feet on the floor or pedals....kinda like the pop is resonating....it hasnt done it at any other points yet...anyone have any ideas?

Screaming04 · 10-13-2006, 01:29 AM

it's the a/c cycling (defrost uses the a/c to dry the air). Some cars, mine included get a bit of a bump as well..it's a hose hitting the firewall when the a/c cycles.

32VALVR · 10-13-2006, 05:00 AM

Quote:

Originally Posted by Screaming04

it's the a/c cycling (defrost uses the a/c to dry the air). Some cars, mine included get a bit of a bump as well..it's a hose hitting the firewall when the a/c cycles.

Great answer. Ya gotta love our cars and the Reg.

Tony Alonso · 10-13-2006, 09:07 AM

There is a TSB out for this issue. The dealer can fix it.

Mach1Chris · 10-13-2006, 11:04 AM

Quote:

Originally Posted by Tony Alonso

There is a TSB out for this issue. The dealer can fix it.

When did the TSB come out? When I took it to my dealer while the car was still under warranty they basically told me it was normal and to **** off...

65fastback2+2 · 10-13-2006, 11:57 AM

if your car is out of warranty do they still cover it?

10-12-2006, 11:42 PM	#1
65fastback2+2 Too many cars to mod Join Date: Jun 2006 Location: Louisville, KY Posts: 6,945	Strange popping noise So far, it only does it when i have defrost on with it going to the feet as well. Theres this pretty loud popping noise about every minute or two....you can sorta feel the pop with your feet on the floor or pedals....kinda like the pop is resonating....it hasnt done it at any other points yet...anyone have any ideas? __________________ Current Rides: 2011 Ford Fusion 2003 MG Terminator, 2.3 whipple Previous Rides: 2003 DSG Lightning, 486/586, 12.09@111.25 2007 F150 Lariat 4wd Screw 2004 OW Mach 1, auto, 1 of 179 2003 DSG Mach 1, 574 rwhp / 528 rwtq 2003 DSG Mach 1, 13.1 @ 109.1 1988 Mustang GT, stock 1967 TB Coupe, project 1965 Fastback 2+2, A-code

10-13-2006, 01:29 AM	#2
Screaming04 old timer Join Date: Aug 2004 Location: Langley, BC Posts: 1,889	Re: Strange popping noise it's the a/c cycling (defrost uses the a/c to dry the air). Some cars, mine included get a bit of a bump as well..it's a hose hitting the firewall when the a/c cycles. __________________ Sold: Screaming Yellow Intercooled 2.1 KB 5speed Mach 1 running a measly 8psi

10-13-2006, 09:07 AM	#4
Tony Alonso Mustang Enthusiast Join Date: Oct 2002 Location: Cincinnati, OH Posts: 5,509	Re: Strange popping noise There is a TSB out for this issue. The dealer can fix it. __________________ Tony Alonso '03 Ford Mustang Mach 1 Coupe Black (code UA) w/o IUP, 5-speed VIN 388409, Built ??/??/???? Delivered 7/12/2019 w/122,696 miles

10-13-2006, 11:57 AM	#6
65fastback2+2 Too many cars to mod Join Date: Jun 2006 Location: Louisville, KY Posts: 6,945	Re: Strange popping noise if your car is out of warranty do they still cover it? __________________ Current Rides: 2011 Ford Fusion 2003 MG Terminator, 2.3 whipple Previous Rides: 2003 DSG Lightning, 486/586, 12.09@111.25 2007 F150 Lariat 4wd Screw 2004 OW Mach 1, auto, 1 of 179 2003 DSG Mach 1, 574 rwhp / 528 rwtq 2003 DSG Mach 1, 13.1 @ 109.1 1988 Mustang GT, stock 1967 TB Coupe, project 1965 Fastback 2+2, A-code

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