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2.8L Engine Stuttering randomly and flashing dash lights

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  #1  
Old 07-19-2009 | 03:09 PM
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Default 2.8L Engine Stuttering randomly and flashing dash lights

Hi,

Seemingly at random, but only under acceleration (be it slight or heavy acceleration) the engine is stuttering. It seems like a misfire or something like that, i'm not sure. But the whole car stutters a little bit. It could just be 1 or 2 stutters or like 7. Sometimes, particularly when it's stuttering more violently, random lights on the dashboard will flicker. Not just a single light, but pretty much every light on the dash will flicker a little.

I have just had both cats and front 02 sensors replaced. But the CEL is on b/c of 02 sensor errors so I think that maybe he didn't hook them up right or something? But the problem was happening before the cats were replaced also.

I have just replaced the spark plugs, air filter, and cleaned the MAF sensor.

The timing belt job was done at 90k and it now has 137k.

I'm heading to pep-boys right now to get a Fuel Filter and some Injector cleaner stuff.

Any ideas? Any help would be appreciated - thank you!
 
  #2  
Old 07-19-2009 | 04:23 PM
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Coils..
 
  #3  
Old 07-19-2009 | 07:22 PM
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Originally Posted by Midniteoyl
Coils..
yea definitely the coils.
 
  #4  
Old 07-20-2009 | 03:09 AM
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Isn't there a recall or something on the coils?

I have a 1999.5 2.8Q.

Is it OK to drive like this?

I replaced the fuel filter - and the old one was completely clogged. I'm hoping that that was the problem. I plan to drive it to work tomorrow to see how it runs.
 
  #5  
Old 07-20-2009 | 03:51 AM
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Random intermittent dash lights makes me think ignition switch, or something related since it sounds like they go hand in hand.
 
  #6  
Old 07-20-2009 | 06:00 AM
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how hard are coils to replace i have the same issue and just did my air filter and spark plugs
 
  #7  
Old 07-20-2009 | 10:31 AM
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hmm, flashing lights makes me think misfire. You said the CEL is on because of the 02 sensors, is that the only code? (i assume you have a code reader or VAG-Com or somethin?)
 
  #8  
Old 07-21-2009 | 03:43 AM
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Coils are easier than the plugs themselves. What year's this?
 
  #9  
Old 07-25-2009 | 02:42 PM
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It's a 1999.5.
Replacing the fuel filter really helped a lot. But I think it still might be happening. No where near like it was before the filter replacement though.
 
  #10  
Old 07-25-2009 | 04:44 PM
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Well, if it was that bad, your injectors prolly could use a cleaning... pick up 2 bottles of techron and run them with full tanks.. one tank w/techron, a tank on gas only, another w/techron.

If it still runs like crap, start looking into the coils. Also, since you changed the plugs, double check all the connections and plug wires are seated correctly.
 



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