When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
More info would help. What engine. ?What is entire cooling system?Does that include water pump? Clutch fan? When is it overheating?
My bad. It's a 5.7L V8 Hemi. New Radiator, new hoses, new thermostat, new water pump, switched from clutch fan to electric fan. It overheats at idle and while driving as well u til you can keep the rpms up but still doesn't cool off enough.
Did you switch to electric fan because of overheating? Is it turning on properly? Are you just going by dash Guage or is it boiling over?
We switched to electric because of overheating and because that's what he wanted in the truck. It is turning properly and is powerful. The dash gauge is correct when it's reading that it's hot and it is boiling over as well.
Ok. I think my next step would be to check for combustion gases in the antifreeze......which would indicate a head gasket failure or cracked cylinder head. Not sure if there are test kits you can buy in your area or you may have to visit a rad shop. When cold you could try removing gas cap with engine running check for unnecessary bubbles. This isn't always a good trustworthy test tho.
Ok. I think my next step would be to check for combustion gases in the antifreeze......which would indicate a head gasket failure or cracked cylinder head. Not sure if there are test kits you can buy in your area or you may have to visit a rad shop. When cold you could try removing gas cap with engine running check for unnecessary bubbles. This isn't always a good trustworthy test tho.
Running excessively rich. That seems really strange when combined with the overheating issue. Have you plugged a scanner in, to see what the PCM thinks temp is?