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 > 8.1 Engine Running Hot

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drifterpilot

Gloucester, Virginia

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Posted: 08/30/19 04:17pm Link  |  Quote  |  Print  |  Notify Moderator

I left VA this morning to go to Little Rock AR. After driving 144 miles on an interstate and while climbing a mountain near Charlottesville VA, the engine temp started to climb. Outside temp was 88 - 90 deg. I pulled over as the indicator was near the very high temp mark. No numbers on the gage so don't know the actual temp, just graduation marks. With engine still running, I opened the engine compt and noted the coolant recovery reservoir was full of red coolant. The two auxiliary cooler fans were running. I don't know if the radiator fan was running; didn't think to look. When the temp indicator was in the normal zone, I started driving again. The coolant level in the reservoir also dropped down about halfway. A few miles down the road, the eng temp started to rise again. I put the dash heat and blower on full blast to remove some heat from the engine. The eng temp lowered down to the normal zone with the heater running. However, as the road climbed and dipped, the temp indicator changed accordingly. I also tried running the dash AC on max cooling with no difference on the eng temp rising.
Additional info: Last week at my home location, I had an auto/truck shop change out my alternator because of a bad bearing, also replaced serpentine belt, and for good measure, I had the water pump replaced as it was original and had 113,000 miles on it.
I am stopped for the night in Dublin VA., engine shut off and will check under the hood at daylight to see what the coolant level is and go from there, add more if necessary.
This being Labor Day weekend, not feeling hopeful for any repair work probably till Tuesday in Little Rock. I do plan to try and put some miles behind me tomorrow. Also will entertain a recommended repair facility along my route.
I welcome any and all recommendations / comments.


2003 Winnebago Adventurer 33V
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wanderingaimlessly

SOBOVA

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Posted: 08/30/19 04:23pm Link  |  Quote  |  Print  |  Notify Moderator

It's kind of a shot in the dark, but based on age and miles, you may want to find a self serve car/truck wash, and try using the pressure washer on the radiator and tranny coolers. You said the fans were running but the fins may be so dirty you are losing a lot of cooling capability.
It's easy and cheap, so it may be worth a shot. Holiday weekends are tough to find open shops.

pianotuna

Regina, SK, Canada

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Posted: 08/30/19 05:12pm Link  |  Quote  |  Print  |  Notify Moderator

Hi,

If the engine is overheating, running the dash air conditioner may be the worst thing you can do. It only adds to the load on the cooling system.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

midnightsadie

ohio

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Posted: 08/30/19 06:10pm Link  |  Quote  |  Print  |  Notify Moderator

might check the connection on that cooling fan they could have accidently disconnected it .

Busdriver

Shepherdsville Ky 40165

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Posted: 08/30/19 06:57pm Link  |  Quote  |  Print  |  Notify Moderator

When was your thermostat changed?


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drifterpilot

Gloucester, Virginia

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Posted: 08/30/19 07:40pm Link  |  Quote  |  Print  |  Notify Moderator

I will check the plug to the radiator fan in the morning.

I have owned this coach since new; thermostat has never been changed or removed.

I have never had a cooling issue in the past.

garyemunson

Reno, Nevada

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Posted: 08/30/19 08:19pm Link  |  Quote  |  Print  |  Notify Moderator

Have you changed coolant on schedule? Dexcool lasts a long time BUT if it never gets changed it clogs up radiators worse than other coolants.

drifterpilot

Gloucester, Virginia

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Posted: 08/30/19 08:32pm Link  |  Quote  |  Print  |  Notify Moderator

Dexcool was changed out when I replaced hoses 3 to 4 years ago.
Thanks

time2roll

Southern California

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Posted: 08/30/19 08:39pm Link  |  Quote  |  Print  |  Notify Moderator

Water pump replaced a week before the issue is very suspicious.
Otherwise I would be looking at the thermostat first.


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Gjac

Milford, CT

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Posted: 08/30/19 09:02pm Link  |  Quote  |  Print  |  Notify Moderator

If you never had this overheating problem before and it started after the belt and water pump was changed I would check the WP and make sure the right one was installed. Is the wp run off of a V belt or serpentine belt? A wrong belt or missing belt would cause an overheating problem also.

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