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HELP WITH 2002 MERCEDES CLK 430

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Old 11-20-2010, 07:54 PM   #1
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HELP WITH 2002 MERCEDES CLK 430

Hi guys,
Im needing some help with my car.
Only has 68,000 miles on it when I come to a stop the car sometimes has a rough idle and when i push the gas peddle it stalls like its going to die.
Its only does this some times.

1. I have changed the Mass air flow sensor Brand New.
2. I have Changed the Cam sensor.
3. Fuel filter was changed a few weeks ago.

The car Runs Great going down the road so I do not think it's the fuel pump but i could be wrong.

No check engine Light has ever come on either.

Also I need to know the location of the Coil #5 the dealer said i had a miss fire.

Do any of you know what I should change or replace?
Im scared the car is going to die on me or get me in a wreck...

Thanks Mark
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Old 11-20-2010, 08:20 PM   #2
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Rough Idle/Stall

Check your engine mounts.A lot of engine movement causes some of these problems.
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Old 11-20-2010, 08:32 PM   #3
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I have replaced them about 5,000 miles ago along with the transmission mount to.
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Old 11-20-2010, 09:24 PM   #4
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You may want to look into the sprak plugs and wires.
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Old 11-21-2010, 08:12 AM   #5
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throttle sensor
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Old 11-21-2010, 10:28 PM   #6
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i have the exact same problem on mine and i only have 71k but is started at 69k, i thought it was the mas also but now that i see what is going on with yours maybe it isnt
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Old 12-08-2010, 05:47 PM   #7
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it's probably a coil ready to go bad.
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Old 12-09-2010, 12:32 PM   #8
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Check your plugs and wires. Make sure plugs aren't fouled, and make sure all wires are secure on the plugs

Also, since everyone is throwing out other options try the crank position sensor. Those go out all the time and can eventually cause your car to not start at all.
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Old 12-09-2010, 10:40 PM   #9
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I think he already did that but he called it a cam position sensor. Yes? No?
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Old 12-10-2010, 07:23 AM   #10
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I had an issue after I did a tune-up a while back and after replacing other parts I found 2 small and easy issues that I should have caught.

1. One if the spark plug wires near the firewall was not on all the way. I pushed it all the way in and it smoothed out a bit.

2. After this I rechecked all connections and found that the Maf connector was loose as well.
I guess my point is to make sure you double check all the basics before you go buying other parts. Check all the wires at the plug and coil, check Maf connections, check the vacuum tubes that connect to the valve covers. Ensure that you don't hear and hissing sounds from the plastic vacuum tubes because that means that you have a leak somewhere. I will try and come up with other things later.... Need my morning coffee first!

Greg
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Old 12-10-2010, 10:52 AM   #11
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Quote:
Originally Posted by dlbehrns View Post
I think he already did that but he called it a cam position sensor. Yes? No?
I thought we actually had both? A Cam Position Sensor and A Crankshaft Position Sensor..... Am I wrong about this?
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Old 12-10-2010, 11:46 AM   #12
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Quote:
Originally Posted by gregory13lil View Post
I thought we actually had both? A Cam Position Sensor and A Crankshaft Position Sensor..... Am I wrong about this?
Crank sensor... well actually flywheel sensor if u want to get technical.
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Old 12-10-2010, 12:57 PM   #13
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Quote:
Originally Posted by gregory13lil View Post
I thought we actually had both? A Cam Position Sensor and A Crankshaft Position Sensor..... Am I wrong about this?
We have a CPS, Crank Position Sensor or like bobbyjo9 said flywheel sensor. very easy fix it costs about $60 in parts and can be done in 10 minutes with a long allen key.
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Old 12-12-2010, 01:43 AM   #14
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wouldnt a check engine light come up if those were the issues
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2000, 2002, 2010, 430, clk, clk430, crankshaft, forums, idle, mercedes, miss, plugs, position, spark, stalling, wires


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