Ford Excursion :: 2000 - Overheating When Towing And Pull A Long Grade
Apr 19, 2016
I have a 2000 Excursion with a 7.3 diesel. I have 245k on the clock. Engine and transmission are original. I have an overheating issue when I am towing and pull a long grade. It's not as bad as it was before but it still happens and I am tired of turning off the AC and putting the heaters on full blast to support cooling when it is 90 plus outside. A list of things that I have done so far.
Newer water pump and thermostat.
New tensioner.
Installed a new trans pan with about 7-8 larger capacity.
Used some magic juju juice to clean out colling system.
Installed a coolant filter. I am on my 5th filter. The first one didn't last 500 miles before getting stopped up.
Switch to Delo ELC.
I recently had the upper hose off and when I looked inside, I didn't see any scale or build up. I also read about some of the trucks of that vintage didn't get a trans cooler. When I looked, I saw a cooler but it doesn't look like it is plumbed through the radiator.
I want to install a large trans cooler. I don't want to replace the radiator just for the sake of replacing it. Also, look at the pic of the water pump with the thermostat sitting in it. Is the thermostat supposed to be resting all the way down? I keep wondering about that.
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Every time I hit a hill, loaded or empty, or get on the truck on level ground after about 15 seconds it acts like it's running out of fuel. The pump starts getting noisy like it has air in it, but it'll straighten out eventually. If you don't let off the fuel it'll eventually stall out. No check engine light, no codes. Truck has a ts chip but it does it on all settings. New fuel filter, changed oil with hot shots secret, new air filter, hutch mod done. I'm at a loss for what to do. Good fuel pressure also.
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My pickup always bogs down going up a grade, seems like its flooding out and it starts running real rough and vibrating bad, I have to let off gas and pull over .
Been to shop several times, no one seems to know what's causing it.
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I have a honda civic 2000 and recently I noticed that it overheat only after exiting a long drive on highway. The car does not overheat for my normal daily commutes (within the city).
I tried the following:
- Checked coolant on bot radiator and overflow tank.
- Changed the thermostat- No leak on the ground in the garage where I parked the car overnight
- No noise to lead to an eventual issue with water pump
- Radiator fan is kicking ok
- Had a mechanic do the chemical test for the head gasket: negatif
- Found that there is air in the cooling system:tried to burp the system 2 times but air is still in the coolant system. Not sure where its coming from !!?? Might be that this could be causing the overheating ?
- Found a crack on the manifold and changed the manifold then tried to get rid of the air (burping the system): no success. The air is still not removed completely.
- Changed the radiator cap.
What can I do next to diagnose the overheating condition that happens only after exiting long drive highway?
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My 2002 Impala runs hot when pulling a long grade and I have to turn off the a/c. It runs fine every other time. New belts, hoses, thermostat and flushed completely with new coolant. The radiator is fine and a/c coils are clean also
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I have a 2000 X 7.3 diesel with under 100,000 miles. I drive it about 10,000 miles a year, all towing. However it does get used everyday driving a student to the bus, a distance of about 10 blocks. There is an engine block heater which I use all winter but the engine never warms up on the ten block run. I do service the engine twice a year, every six months. What damage am I doing and what can I do to prevent any damage?
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Tranny died 12000 miles ago and shop rebuilt tranny with new torque converter.
Problem then and now is after long freeway run 60+miles it dies and bogs down with any shift change. If it is placed in 2nd it will bogg down and die. If the tranny auto shifts it also dies. If it cools or just sits it will run again for a while. This does not happen always so it is hard to duplicate it.
Truck is not towing or even loaded most of the time and only once was it loaded when it died, the first rebuild. Truck has 249000 miles, ex v10.
So any clues as to what the shop missed last time and is it worth rebuilding again. Truck is only worth a bit more than the cost of shop time.
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Now that I have gotten my ScanGauge II to monitor all 4 egt sensor, I am wondering about temperatures while towing, especially how long to idle a hot engine after heavy towing.
I realize all 4 sensors are post turbo (and there is no chance I'm going to drill for an after market pre-turbo sensor). It seems the first one downstream will be the one to watch.
What temperature range we should look for before turning off the engine? IIRC, Ford recommends idling for 3 to 5 minutes, but watching the temp seems a bit more specific.
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I have a 2000 Ex with 252,000 miles. Where it is extremely hilly (Ozark Mountains). I tow a 6400 lb travel trailer. What I am having problems with is the Ex is running extremely hot when towing and climbing hills. Not in the red, but damn close. No problems what so ever when not towing. No problems when towing on level ground. I know the Ex is working hard, but I want to keep it running cooler. I have flushed the radiator literally 20 times and have done 2 chemical flushes. Is it time to just replace the radiator? How many passes does the stock radiator have? What about a bigger water pump? I have the 5.4 motor, which I love so no bashing my little V8. It has all the power I need. I don't need to climb hills doing 90mph.
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I borrowed a friends 2000 Excursion with the Triton V10, along with his 3300lb, 28' trailer to tow a car from Ashland, OR to Reno, NV to begin a restoration project. His Excursion has 175,000 miles on it and made the trip down flawlessly, but as they say, "No good deed goes unpunished." When attempting to return last Sunday, had to turn around due to overheating problems. Analysis at a local automotive shop concluded a bad radiator cap. Attempted the return trip Tuesday and the same thing happened (only got farther due to the new cap and ability to hold pressure longer).
Finally got into a Ford dealer and have been informed that the truck has a bad head gasket causing pressure to leak into the cooling system. They suggest replacement of with a remanufactureded engine as opposed to replacing head gaskets, due to the time on the entire engine (who knows what else might be bad?). The vehicle can be driven around town for miles with no problems. But put that heavy load on it and grades and it spews out nearly "all" of the coolant.
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Truck has recently developed a weird overheat issue. Ill try to give a s much background as possible:
I changed the heater core in the winter and that definitely cured the lack of interior heat issue the truck had since I got it. Blows hard and hot now. (I suspect I should also swap out the rear one too)
On occasional since then I have noticed the odd time a "gurgling sound" in the heater core area. Its not all the time but here and there.
Within the last 3 weeks or so I have gotten a check engine light. I've been a bit too busy to address it, and don't tend to drive very far (work and back) but have downloaded the comp and have a P0174 and P1299. Now just in the last 5 days I have noticed the temp gauge , which is normally firmly parked at about 1/3 in the zone has moved up to nearly the hot area. I can easily bring it back down by using full heat. I have cleared the codes and they haven't returned yet, but I'm suspicious of them non the less.
What can cause lean on only one bank? I have looked at the usual suspects and don't see any obvious leaks. Is it very common to have a intake gasket leak? what's the easiest way to check for that?
My rad appears in good shape although the AC condenser is pretty beat up. I'm definitely going to flush out the coolant, it looks good and used.
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I have a 05 6.0l that started over heating while towing recently. In 2012 i did egr delete, oil cooler, stc fitting, and coolant filter. I recently changed radiator and tstat think that was the problem due to small leak in radiator, but still towing about a 4-5k load temps rise to over heat while towing. What to look for next. Also fan seems to be work properly I monitor fan speed etc., and tft on my scangauge.
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Alright I got a '99 7.3 Superduty F-250 I have been overheating while pulling my 1985 Camper weights around 6K. I put a new thermostat in still overheated.
Scenario, Rpms 2500-2700 top end trying to keep fluids moving. OD to D to 2 to 1. Run in between 1 and 2 basic on the up and flat of the road.
6-8% grade engine gets hot pull over and let it cool put it in 4 wheel works a little bit 4 wheel at least keep the tranny around 180. I only have a tranny gauge, I'm using the dash temp gauge for the engine.
What I'm I doing wrong or over looking.
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I have a 2001 excursion 7.3 4x4 with the 6.0L trans cooler. It is over heating when heavy, uphill towing is under way. I am guessing that my computer has been reprogramed at some point and more fuel is being injected than the radiator is designed to cool. I know my trans cooler is clean. I have tried cleaning the radiator and intercooler with a garden hose. I am considering a hood scoop or some sort of vents in the hood. When it over heats I turn on the heater and open the hood and the engine temps drop in just a few minutes so I believe that the engine needs more cooling or I need to slow down a bit on hills. Any other cheap fixes to get more air in to cool things under the hood more?
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We just got back from our first big trip with the EX since we have owned it. We towed our (new to us) 25' TT up to northern Michigan (Elk Rapids area). This was my first time pulling a camper this far. We have been on smaller weekend trips with it.
My question is regarding the speed control. I tried using it but when it was going up a slight incline it would not kick back down. I would have to turn off the speed control in order for the RPM's to drop back. Do you guys use your speed control while towing? What about over-drive? Should I have it on or off?
By the way, we had a great time and so glad we have the EX!!! Kids had plenty of room. Got about 8 MPG! That's how we roll!
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I have a 02 excursion 7.3 with 120000 miles. Went camping and towed my 28ft travel trailer weighs about 9000 lbs loaded . The trans got super hot dumped fluid in the past this time same thing but the front seal went had it replaced and the trans pump rebuilt on the way home it got super hot a few times what I need to do now. The trans guy said the trans had been rebuilt in the past don't know when cuz I bought the truck used 1.5 yr ago..... The truck has tow package coolers its set up for towing how the hell do I keep the temp down...
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I had a flow master 50 sieries on my v10 and it sounds like something rattling around when towing. Guess i will have to find something different later on.
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2005 Excursion 6.0 104,000 miles
I have a scanguage2. Normal driving yesterday morning. Not towing. Temp got up to 200 deg.....then later to 240!! Never an issue with the tranny !!
Yesterday I checked:
-the fluid level and it's fine.
-There was some crud on the dipstick though.
-temps for EOT and EWT are fine.
-a distinctive hot rubber smell too when it got to that temp.
Today I checked:
- the coolant for traces of transmission fluid...there was none.
-looked under the truck for fluid that may have blown out the vent....none
-no leaks anywhere
The truck is parked and will be towed to the shop so i don't incurr any more damage. So what could the prob be??
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I towed my friends car hauler yesterday for a short distance for him. I had no turn signals or 4 way flasher while towing. After dropping off the trailer still no signals or 4way flasher. I parked and checked fuses all were good and signals started to work. But still no 4ways. Any thoughts on what to look for. Never had this before. I have blown a fuse before and always been able to find and fix.
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How much do any of you increase your tire pressure while towing?
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I have a new set of towing mirrors for my beast and also a set of the LED smoked signals. It appears that the old ones just "pop" off but I would like to know for sure.
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