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Hoping you guys can help me out!

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Old Dec 26, 2014 | 02:04 AM
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akmiekis's Avatar
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From: ohio
Default Hoping you guys can help me out!

Okay so I've had my crossfire for about 4 months and it only has 35000 on it but it is giving me a scare with some weird problems.

1) when i push the clutch in, it sometimes makes a clunking sound.
2) When i'm drivng and i come to stop it seems like it surges and drops in rpm's for a second and all the lights dim but it goes back to normal after a matter of seconds. could it be the CPS?
3) finally when i turn off the engine another clunking sound happens.


If anyone can help me find the problem with these i will forever grateful!
 
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Old Dec 26, 2014 | 12:18 PM
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whoosh's Avatar
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From: Wisconsin
Default Re: Hoping you guys can help me out!

Doubt its the cps. I assume you have no check engine lights showing? Is it a loud clunk or a clunk you feel and not really hear?
 
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Old Dec 26, 2014 | 01:59 PM
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americanretrodave's Avatar
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From: Dinuba, CA
Default Re: Hoping you guys can help me out!

What octane of fuel are you using? What are the rpm's when it idles?
 
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Old Dec 26, 2014 | 10:49 PM
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pizzaguy's Avatar
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From: Fort Worth, Texas
Default Re: Hoping you guys can help me out!

My comments are in bold.

Originally Posted by akmiekis
Okay so I've had my crossfire for about 4 months and it only has 35000 on it but it is giving me a scare with some weird problems.

1) when i push the clutch in, it sometimes makes a clunking sound.
Are you rolling down the road, or is this before you start the car?

2) When i'm drivng and i come to stop it seems like it surges and drops in rpm's for a second and all the lights dim but it goes back to normal after a matter of seconds. could it be the CPS?
A bad CPS usually causes the engine to die, without input from the CPS, the PTCM technically does not know when to fire the plugs - so it doesn't fire them at all.

This sounds like instability in the voltage thruout the car. As the engine slows, it is normal for alternator output to drop a bit. It is up to the battery to fill in for this. How old is the battery? Are the terminals and posts clean? If that is an old (over four years and CERTAINLY over six years) battery - change it now.


3) finally when i turn off the engine another clunking sound happens.
I'm starting to think you have a broken motor mount.

Does the spoiler seem to have a mind of it's own? That is, it may go up and down at odd times. This would be yet another battery/battery cable corrosion indication.
 
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