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bad 4.7l

Old Mar 9, 2009 | 05:28 PM
  #1  
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Default bad 4.7l

2006 ram 1500 33,000mi. shakes at idle, hesitates,carbons up. I had full tune up, injector cleaning x,s 2 no error codes. the dealers "3 of them" says well there is no error codes bring it back. on my own changed the pcv valve. no help.
Does anyone know . need help
 

Last edited by b gardner; Mar 9, 2009 at 05:32 PM. Reason: misspelled
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Old Mar 9, 2009 | 07:23 PM
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Has any of the dealers given a thought to check the throttle body? If it's dirty it will give your symptoms and often not generate a CEL.
Also, does the oil pressure needle stay constant or does it dip down low and then come back up. This would indicate sludge and possibly a clogged screen or sending unit, again, this does not often generate a CEL.

Both are known issues that can cause your problem.
 
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Old Mar 10, 2009 | 12:42 AM
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Default bad 4.7l

I have dont know if they checked the throttle body after cleaning. but the oil pressure needle is normal range, does not move. when the engine is cold it runs perfect.warm the idle drops to 500 shakes
when at warm driving temp. is when the problem happends 1st,2nd 3rd ok 4th,5th slugs and kicks down. dead peddle.BUT if in tow haul ,or overdrive off ,runs great? 89 octaine works better,
 

Last edited by b gardner; Mar 10, 2009 at 11:12 AM. Reason: to add
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Old Apr 28, 2009 | 02:53 PM
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Default Fixed it

I replaced the throttle position sensor.
 
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Old Apr 28, 2009 | 03:17 PM
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yeah i would say the throttle position senser
 
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Old Apr 28, 2009 | 03:36 PM
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easy to say sensor now.. lol

glad you found it. I was rooting for sludge..
 
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