Re: 02 ram 4.7 still overheating
[Re: fastmark]
#1544220
12/06/13 09:21 AM
12/06/13 09:21 AM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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I hear that brought up a lot but in my 37 years of experience as a tech I've never seen it. Doesn't mean it can't happen, just that odds are against it. I have seen the impeller eaten away from corrosion or cavitation, but that's pretty rare too. I would pull it and look at it as well as the timing cover.
Are you sure the fan clutch is working? Does it overheat at idle/low speeds or highway speeds?
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 02 ram 4.7 still overheating
[Re: fastmark]
#1544222
12/06/13 12:39 PM
12/06/13 12:39 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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I have to ask, did you put a new radiator in or a used one? If it had that much rust in it then the impeller could be a problem as well as build up in the block.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 02 ram 4.7 still overheating
[Re: fastmark]
#1544224
12/06/13 02:37 PM
12/06/13 02:37 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Yeah the heater core is probably plugged up as well or there just isn't enough circulation.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 02 ram 4.7 still overheating
[Re: fastmark]
#1544226
12/06/13 03:38 PM
12/06/13 03:38 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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You're welcome. Good luck.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 02 ram 4.7 still overheating
[Re: Danny]
#1544229
12/07/13 02:24 AM
12/07/13 02:24 AM
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Joined: Jul 2013
Posts: 13 NB, Canada
Mirada 80
member
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member
Joined: Jul 2013
Posts: 13
NB, Canada
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I have a 2003 Durango 4.7, same problem, the center of the impeller broke, water pump was only a year old. I'll post pictures tomorrow.
Keep your Mopar all Mopar
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Re: 02 ram 4.7 still overheating
[Re: fastmark]
#1544230
12/07/13 10:36 AM
12/07/13 10:36 AM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Quote:
Well just got back from a from a little diagnostics from my friends at a tranny/engine rebuild business and they run the codes (the check engine light has been on for some time, I am told). Fuse to the a/c fan was out and cly #4 and 8 have a misfire. I could tell it had one cly not hitting when I started this ordeal. This truck is a prefect example of neglected maintenance. He put a sniffer in the radiator tank and it turned the blue fluid into a greenish yellow. He said that meant it had some hydro-carbons in the coolant. I never knew they had a test like that. It went to about 236( we had the scanner plugged in) just driving around the block in 20 degree weather. I bet if I pulled the plugs in 4 and 8, I would find signs of coolant in the chamber.
If that's the case the engine is probably sludged as well from lack of maintenance. Going to get expensive from here.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 02 ram 4.7 still overheating
[Re: fastmark]
#1544232
12/08/13 12:24 AM
12/08/13 12:24 AM
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Joined: Jul 2013
Posts: 13 NB, Canada
Mirada 80
member
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member
Joined: Jul 2013
Posts: 13
NB, Canada
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Glad you found it without any more damage, I was lucky with mine too, mine blew out in August, I was climbing a long steep hill, rpms jumped from 1500 to 3400 as it down shifted, temperature gauge was nearly pinned as I crested the hill. Plastic parts should not be in there, I don't know what they were thinking, that pump was only a year old, replaced it with a lifetime over the counter warrantee one, but that doesn't help with labour.
Keep your Mopar all Mopar
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Re: 02 ram 4.7 still overheating
[Re: Guitar Jones]
#1544234
12/08/13 11:58 AM
12/08/13 11:58 AM
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Joined: Jan 2003
Posts: 21,076 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,076
Niles , Ohio
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If you think thats bad wait till you see a steel impeller thats not there.We had a few GMs at the shop that drove us nuts.Did all kinds of diag on them.I finally decided to check the pump.Thought it might be spinning.Took it out and it was pretty much a piece of round metal.No impellers left.Rocky
Chrysler Firepower
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