Sputter in engine at 95K
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 491
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From: Hotlanta
'00 CLK430 & '08 Lexus RX 350
Sputter in engine at 95K
So I figured since the MAF was new and the Air Filters clean this was more than likely plug misfire(s). I bought new plugs and replaced. The engine Idle was beautiful and I certainly felt an increase in power and acceleration. 4 Days later the sputtering returned. Anyone with ideas?
I did not replace wires. Could this be the culprit or is it something else?
Thanks as always for your knowledge.
-MMM430
I did not replace wires. Could this be the culprit or is it something else?
Thanks as always for your knowledge.
-MMM430
Super Member
Joined: Jun 2008
Posts: 855
Likes: 2
2010 C63
the wires can easily pop off the plug after plug replacement. I noticed a lot of air pressure building up in my plug boots when i plugged them in- i also use a dialectic grease on them so it was sealing the air in. i vented the air so they fit tight and didnt pop off
Super Member
Joined: Apr 2010
Posts: 665
Likes: 1
From: springfield,mass
2001 clk 320
I had the same problem around 100k.the car was throwing crazy misfire n codes.I switched the coils around to make sure it wasn't that.so I bought new plugs and wires,and the car was brand new again.then I went and bought a code scanner to make sure no other codes were showing up and aslo to erase the cel.u can aslo switch around ur coils to c if ur still get n the same cylinder misfires.good luck with the problem hope the info helped.
Thread Starter
Senior Member
Joined: Apr 2006
Posts: 491
Likes: 0
From: Hotlanta
'00 CLK430 & '08 Lexus RX 350
I had the same problem around 100k.the car was throwing crazy misfire n codes.I switched the coils around to make sure it wasn't that.so I bought new plugs and wires,and the car was brand new again.then I went and bought a code scanner to make sure no other codes were showing up and aslo to erase the cel.u can aslo switch around ur coils to c if ur still get n the same cylinder misfires.good luck with the problem hope the info helped.
Thanks guys.....so jbenz, I take it it was not coils but the old plugs/wires. Once changed and code scanned, did you find any more codes?
How much was the code scanner you bought and from where? Thanks for the knowledge!
Super Member
Joined: Apr 2010
Posts: 665
Likes: 1
From: springfield,mass
2001 clk 320
No codes at all,once plug and wires were changed everything was straight.I bought the code scanner from autozone for $60 bucks.it isn't the best one u can get but it does the job of get n u the codes.u easily can look up the codes on the internet or n e autozone,advance,pep boys ect. can tell u.its worth it,not to mention u can charge people to have u use it on there car too lol.its very easy to use.feel free to ask if u have n e more questions.peace bro!
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