Problems with the wife's 99 - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 6 Old 04-30-2009, 09:30 PM Thread Starter
 
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Problems with the wife's 99

Hello, this is my first post.

Were having SEVERAL problems with this car.
First, it has a pinging during acceleration. I have Seafomed it and it seemed to quiet it down for about a week or so. Then, I tried the carb tune-up cleaner from the Ford dealer. Same thing, only quieted it down for a week or so.
The car does not do it while in park and reving it.
The car also idles very rough and sometimes we have to hold down the gas pedal to get it to start.
I did notice that the pass. exhaust manifold has a crack in it. I can't see it but after doing the carb tune-up cleaner (the car smokes like crazy)and I noticed smoke coming from the manifold.
The car doesn't seems to have a lck of power due to these problems. There is no water in the oil or oil in the water.
Things that I have done to it so far:
Plugs
Wires
Changed oil
Air filter
Fuel filter
Fuel pump
Changed the drivers side valve cover
New PCV
New coil pack
Took off the upper intake and cleaned it VERY well
Cleaned the IAC
Thermostat
Checked for vacuum leaks

None of the above has changed anything.
Could the cat's be clogged causing this?
CCRM?
FPDM?
Could the ECM be bad?
I'm really lost on this one....
Anyone ever had these problems?

Thanks for any and all info!


Last edited by TJones; 04-30-2009 at 10:02 PM.
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post #2 of 6 Old 05-02-2009, 11:39 PM
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I know this might sound crazy... But where getting your fuel from? That might make all the difference in the world.


2002 Mustang GT N/A 3.73 Richmond Gears, Auburn Pro Series Diff, Moser 31 Spline Axles, TKO 600, On3Performance 67mm Ball Bearing Turbo Kit.

Last edited by Weaponrider87; 05-02-2009 at 11:42 PM. Reason: oops
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post #3 of 6 Old 05-03-2009, 03:34 AM
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I would check either the fuel or even your timing. If your timing is too far advanced then you might be having these issues. It's not that our cat is clogged or blocked off because that would only cause a less of compression and manifold vacuum which could lead to some issues, but not pinging.
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post #4 of 6 Old 05-03-2009, 11:08 AM Thread Starter
 
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She gets gas at different stations as she needs it. Ive checked the fuel pressure and it was right at 32 PSI. New pump & filter.
Is the timing adjustable or does it have to be adjusted at the dealer?
Would a cracked exhaust manifold cause any of this stuff?

Thanks you guys!
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post #5 of 6 Old 05-03-2009, 05:38 PM
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I want to say that your car would probably have the coil-packs and not a distributor so timing is adjustable without tearing into a bunch of stuff. If you or a friend has a timing light that would be the best way to go to check for that. A craked exhaust manifold is just gonna cause your car to run loud and possibly rich because of the extra oxygen going into your exhaust before the oxygen sensor.
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post #6 of 6 Old 05-03-2009, 09:03 PM Thread Starter
 
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Quote:
Originally Posted by dhribik89 View Post
I want to say that your car would probably have the coil-packs and not a distributor so timing is adjustable without tearing into a bunch of stuff. If you or a friend has a timing light that would be the best way to go to check for that. A craked exhaust manifold is just gonna cause your car to run loud and possibly rich because of the extra oxygen going into your exhaust before the oxygen sensor.
Yeah, it has a coil pack...
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