2004 70k 4.7 -- old and tired or else?
#31
12-18-2007 | 11:02 AM
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Joined: Dec 2007
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RE: CONCLUSION?
ORIGINAL: HammerZ71
Now if Chrysler could build a tranny as reliable as their engines...
Now if Chrysler could build a tranny as reliable as their engines...
And FWIW, New Venture (one ofDCX's, oranybody's, main driveline suppliers)typically makes some pretty stout driveline parts. IIRC their QC standards are higher than the typicalChryCo assembly line. I actually spent a month or two touring one of their main facilities, years back.
Adam
#33
12-19-2007 | 08:53 AM
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Joined: Mar 2006
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RE: CONCLUSION?
We have the same issues with the 05-08 dakotas. I have the 3.7l which is very similar to your 4.7, and that 4.7 is in the 3rd gen daks as well. Mine runs great, it just ticks at idle like you described. It has been discussed among us and the dealer that this is nothing to be worried about.
#34
12-19-2007 | 10:19 AM
Joined: Sep 2007
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RE: CONCLUSION?
FWIW- We just bought a 2002 Ram with the 4.7 about 6 months ago and it had just under 100k miles on the clock. Being a mechanic and vehicle nut, the first thing I did was do a total tune up and changed the oil to Mobil 1 with a pure one filter. The truck runs awesome did develop a light tick at cold startup like you describe but it wasn't enough to concern me as I've heard many OHC motors over the years do this.
I also just did the can of combustion cleaner and new autolites 3923's. And considering the champions I took out were SHOT, it really helped the truckwith acceleration and smoothness.
Anyway, I'm thinkin most of your "tick" was in the exhaust leak, which canreally sound like a valvetrain issue. Don't sweat it,keep the oil changed and take care ofitand you'll be fine.
I also just did the can of combustion cleaner and new autolites 3923's. And considering the champions I took out were SHOT, it really helped the truckwith acceleration and smoothness.
Anyway, I'm thinkin most of your "tick" was in the exhaust leak, which canreally sound like a valvetrain issue. Don't sweat it,keep the oil changed and take care ofitand you'll be fine.
#35
12-23-2007 | 07:18 PM
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Joined: Dec 2007
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RE: CONCLUSION?
ORIGINAL: Rammin02
FWIW- We just bought a 2002 Ram with the 4.7 about 6 months ago and it had just under 100k miles on the clock. Being a mechanic and vehicle nut, the first thing I did was do a total tune up and changed the oil to Mobil 1 with a pure one filter. The truck runs awesome did develop a light tick at cold startup like you describe but it wasn't enough to concern me as I've heard many OHC motors over the years do this.
I also just did the can of combustion cleaner and new autolites 3923's. And considering the champions I took out were SHOT, it really helped the truckwith acceleration and smoothness.
Anyway, I'm thinkin most of your "tick" was in the exhaust leak, which canreally sound like a valvetrain issue. Don't sweat it,keep the oil changed and take care ofitand you'll be fine.
FWIW- We just bought a 2002 Ram with the 4.7 about 6 months ago and it had just under 100k miles on the clock. Being a mechanic and vehicle nut, the first thing I did was do a total tune up and changed the oil to Mobil 1 with a pure one filter. The truck runs awesome did develop a light tick at cold startup like you describe but it wasn't enough to concern me as I've heard many OHC motors over the years do this.
I also just did the can of combustion cleaner and new autolites 3923's. And considering the champions I took out were SHOT, it really helped the truckwith acceleration and smoothness.
Anyway, I'm thinkin most of your "tick" was in the exhaust leak, which canreally sound like a valvetrain issue. Don't sweat it,keep the oil changed and take care ofitand you'll be fine.
Next time I'll try these 3923's. But yeah, the "tick" that I've heard several people here and elsewhere describe begrudgingly as "normal" is gone in my truck, though just to be safe lucas will go in every oil change.But the new exhaust gasketsquieted the valvetrain noise.
the 4.7 has a surprising buttload of power, and sounds fairly mean with the Gibson SuperTruck short pipe muffler. Drives like a new truck now and I'm happy with it, with the exception of the Michelins which are either out-of-round or unbalanced or both, but those will go later on.
Adam