2nd Gen Non-Engine/Transmission Block heater

[Adam]

Dealer's lying (again)

J Rowe,



There is a TSB that recommends leaving the block heater plugged in while the engine is running to prevent carbon build-up on the valves during extended idle time. You can look for it at www.dodgeram.org. It should be listed under the "engines" section.

-Adam

 

[Shovelhead]

From Cummins:



As the ambient air temperatures have started to drop in out Northern Regions we are reminding the field, by this Thursday Note, on the ISB sticking valve / bent push tube issue. The 4 valve cylinder head on the ISB runs at a cooler temperature, which in some cases is allowing tar to condense on the exhaust valves. This may result in sticky valves and bent push tubes. The 2 valve head runs at a hotter temperature, thus preventing the tar build up. To reduce the risk, the following recommendations should be followed. This may be found in the PITs document "JJGN-44BKRU"



STICKING VALVES - SERVICE PLAN



Short Term:



Reactive short term: Repair and clean cylinder head as required.



Proactive short term: To prevent or decrease the risk of this occurring to an engine which frequently idles for long periods of time in arctic temperatures, Cummins recommends the following:



Use of a winter front on these trucks

Use of a block heater when the engine is idling.

If the truck is already equipped with an exhaust brake, it should be turned on during idle

Prior to shutting off the engine after extended idling (6 hrs) it is important to bring the engine to operating temperature (minimum of 140 degrees) to remove any carbon build up on the valves. This can be accomplished by driving the vehicle for 20-30 minutes or;

NON-Chrysler: Operate the engine at high idle for 5 minutes or until engine reaches 140°F.

Chrysler: Run the truck at 2000 rpm for two minutes, 3000 rpm for two minutes and then 3500 rpm for two minutes, until the engine reaches at least 140°F.

 

[illflem]

It's easy to tell that there's no rush of cold water across the heater when the engine starts, just feel your radiator after it's been plugged in, it will be hot. Convection circulates the coolant, it will all be about the same temperature.

 

[WadePatton]

yeah, and the temp gauge doesn't dip like it does when the thermostat opens.



wrong tree.

 

[Rob Levandoski]

To prevent the opportunity of driving away without unplugging, I bought one of those "high-tech" lighted plugs from the local Home Depot. Every time I walk out the door, there's the lighted plug staring me in the face.



Give me time, I'll join the club I'm sure.

 

[WTBurke]

Originally posted by Shovelhead

Chrysler: Run the truck at 2000 rpm for two minutes, 3000 rpm for two minutes and then 3500 rpm for two minutes, until the engine reaches at least 140°F. [/B]

:--)



William

 

[Desperado]

I never have,dont think I ever will, I have to move the cord before I can even get it to the pick-up, makes it easy to remember.