Engine heat problems

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Topic: Engine heat problems (Read 724 times) previous topic - next topic

Engine heat problems

June 26, 2011, 07:52:32 pm

My foretravel is fine but our friends have a 04 Tiffin Allegro Bus and traveling it's getting hot (220 buzzer going off). He never had problems till last year. He just put a new hydraulic pump on and didn't help. He has Cummings 350 HP , My Cummings is the M11 425 HP and not an issue . Any suggestions? Thanks Art

Re: Engine heat problems

Reply #1 – June 26, 2011, 08:03:15 pm

Art,
It sounds like a radiator issue; does the temp go down when he slows down to 55-60 mph? If so, it could be plugged core or loose fins, though fins usually go in older (10-15 yrs) coaches. If temp stays high at slower speeds, may be thermostat.

Re: Engine heat problems

Reply #2 – June 26, 2011, 09:30:37 pm

Assuming side radiator:

Clean outside of radiator (actually CAC)
Change thermostat-- inexpensive and a possible cause.
Verify operation of the side radiator fan(s). Some have two speed fans and need to verify it kicks to high when temperature rises.

Brett

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