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"Popping" Noise when backing up

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Old 30 Jun 2012, 11:50 pm
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Join Date: Jul 2011
Location: Detroit, MI
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Default "Popping" Noise when backing up

My '03 Touring Edition makes a loud popping noise when I back the car up. This only happens when it's been sitting for a while (like when I back out of the driveway), or if I've been driving it for a while, then I need to go into reverse. If I'm backing up, then stop, then back up again, it doesn't happen. It's only that initial time I back up.

The noise seems to come from the frond end. In the past year or so I've changed the lower control arms and the stabilizer bar bushings in the front end, and the watts links / bell crank in the back end. Any idea what else could be causing this noise?

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Old 01 Jul 2012, 02:42 am
Vlefaive's Avatar
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Join Date: Jun 2012
Location: Whitby ON Canada
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Default Re: "Popping" Noise when backing up

If you're from Michigan its probably mice................. jk.... why not get it on the hoist at a dealer?
'03 GT Blue/ autostick.. 160,000KM ( That's 100,000miles for y'all South of the border ) All the options, the heated leather is a must up here in Canada, Love the solid heavy duty feel and obvious Torque.. The Turbo is strong, fast and reliable.. People that don't understand the love of a PT, probably don't deserve to.
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Old 01 Jul 2012, 06:47 am
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Default Re: "Popping" Noise when backing up

A small search came up with someone suggesting to check the slide bolts on the front calipers.
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Old 01 Jul 2012, 10:05 pm
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Location: Detroit, MI
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Default Re: "Popping" Noise when backing up

Thanks Crewzin. Most of the searches online suggest a caliper issue or motor mount issue. I'm not sure it really sounds like either, but I'll have someone else back it up, with the hood open and I'll try to get a better sense of where it's coming from.
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