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wallie_x
Dodge Dakota
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9/03/2004
13:13:41
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 Subject: Noisy Lifters
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Message:
I just bought a 2002 Dakota club-cab w/50,000 miles and some change on it. When it first starts up cold there is no lifter noise. After it warms up however, there is substantial lifter noise out of one cylinder. I haven't bought an overhaul manual yet, so I was wondering: do these trucks have adjustments to tighten the rocker assembly?
Any pointers would be welcome.
Thanks Wallie
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Carl
Dodge Dakota
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9/03/2004
13:35:12
|  RE: Noisy Lifters
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Are you sure it's your lifters or that mysterious tapping sound that most attribute to the timing chain adjuster. My '96 3.9 has made that noise after it warms since day one. Now has 130k miles - but never experienced any problems, but still makes the noise.
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J and J Auto
GenII
 
9/04/2004
02:49:05
| RE: Noisy Lifters
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Message:
Rocker arms are not adjustible
If you suspect a lifter try some marvel mystery
oil or CD2 both made by the same company and will
help noisy lifters.
Amsoil engine flush and than change the oil and
filter also helps remove any deposites from the
lifters that cause them to tic and helps
some lifters nothing will help but replacing them
if indeed it is a lifter making the noise
investigate farther to be sure a scew driver of
a cut off broom handle the poor mans stethiscope
will help locate the sorce of any noise just hold
it against the motor and your ear and try to
locate the noise
Larry
J&J Auto
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wallie_x
Dodge Dakota
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9/04/2004
12:24:02
| RE: Noisy Lifters
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Message:
Thanks for the replies!!
I did put some 'Rislone' in it after changing the oil. What's got me a little stumped is, its usually worn lifters that 'deflate' under valve train pressure when the engine is not running and are noisy when cold. I have used STP to quiet noisy lifters on worn engines before, but this one only has 50 thou miles on it and with fall just around the bend I was reluctant to increase the viscosity of the oil (I used 5W-40W in the oil change hoping that would help).
I was thinking maybe sticky valve guide that with the hot engine constricts the valve travel due to the metal expansion???
I haven't truly isolated the noise yet so I will use the broom handle 'stethoscope'
Thanks again for the replies!!
Great Web Site!!! wallie
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daffydak
GenIII
9/04/2004
13:27:51
| RE: Noisy Lifters
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Message:
it could also be an exhaust leak. the exhaust manifold bolts, arent the greatest... I could have SWORE I had a noisy lifter on the 98 3.9L I had. it turns out, it was a broken exhaust manifold bolt! (at only 52,000 miles)
Check my prev. thread out about this.
http://www.dodgedakota.net/boards/v6/8732.html
The timing chain sound, is more of a rattling sound then a tapping lifter sound. (at least all the ones I have heard)
Hope I helped
Dan
MOPAR=More Power!!
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wallie_x
Dodge Dakota
JOIN HERE
9/05/2004
01:58:26
| RE: Noisy Lifters
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Message:
After listening to the engine with an okie stethoscope, I have only one thing to say:
man these Dakota fuel injectors are noisy.
I put some high grade injector cleaner in the fuel, plus the Rislone in the oil and already the engines quieted down some. I have a feeling it was a little of both the injectors and the lifters producing a little too much valve lash.
Since most people in this forum own 3.9 V6's are these just noisy engines?? I'm moving from a Toyota Tacoma to this Dakota. I always wanted a Dakota, but I couldn't afford one until recently. I got this one for $9,900.oo, 2002 Club Cab w/4 speed automatic and the full Tow package. So far I like it quite a bit; it rides almost like a car.
Time will tell whether it was worth it though.
Thanks again for all the replies. wallie
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