Question about 1988 Ford F 350

Open Question

My truck is always overheating(not to the point of boilover, but close), and I have flushed the radiator numerous times but the water is always a very red, rust color. When you remove the cap, it is covered with a thick coat of grime and gunk. what causes the rust? Is it in the engine or the radiator. Note: I removed the thermostat, hoping the direct flow would help, it hasn't.

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 157 Answers

SOURCE: 2.3l ranger keeps overheating, been through two radiators already.

Hello Ranger Joe, eight months and two radiators is very uncommon. Question, Have you visually confirmed the leak in the radiators or is the leak near the hose connections? Replacing the radiator, cap, water pump, & the thermostat leaves only two others, the hoses and the engine block/heads. Far fitched will be something or somebody poking holes in the radiator.

Posted on Nov 07, 2008

Ad
  • 5 Answers

SOURCE: 1966 Ford Mustang overheating

try to run the water pump without hoses, and add water in the 'in' side, if is powers out the other side, then it's fine. how is your water/coolant mix?

Posted on Dec 01, 2008

  • 1 Answer

SOURCE: ford ranger truck overheating

I have had this happen with my ranger. Changed everything I could to try to fix the over heating. It turned out that I had a small leak in my head gasket and it was allowing exsaust gas to go into the cooling system witch was over pressurizing it. Also the air from the exsaust will heat up much faster than liquid making your thermostat to read hot and will not be able to blow hot air in the cab because there is no liquid going to the heater core. This happened to me when my blet came off and I tryed to make it home. If you had it over heat for a long peirod of time it may have ripped the head gasket.

Posted on Feb 21, 2009

  • 4088 Answers

SOURCE: Aloha,have 98 base mustang, overheating after many replacements

Do the radiator fans come on? Turn on the A/C which should start the fans automatically. Does that stop the overheating? Replace the temperature sensor if engine heat doesn't turn on the fans (A/C off). The water pump can be checked by removing the thermostat and lowering the water level in the radiator until the tubes are exposed at the top. With the engine cold, start it and watch for water being pumped into the radiator (it should be a fair quantity), which points to an effective water pump. Shut off the engine, replace the thermostat, and refill with coolant.

Posted on Sep 26, 2009

pepsiman1967
  • 216 Answers

SOURCE: dash temp guage goes to red on 2000 ford focus dohc zetech

Because you have done so many repairs already I would most likely say that the gauge is defective. I would use a manual temp probe and probe the coolant temp after the car has reached operating temp. Coolant will be between 180- 230 degrees. If coolant temp checks out and you can see coolant moving in radiator and the vehicle does not overheat then you will need either a gauge or a coolant sensor. To locate the sensor it should either be mounted in the thermostat goose neck housing or the intake manifold.

Posted on Jul 31, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Overheating water in water bottle boiling how do I repair


You need to find the cause of the boilover. The most common is a stuck thermostat. If that is not the problem, be sure that you have the proper mix of antifreeze and water in the radiator. Too little antifreeze can cause boilover. If neither of these is the issue, the problem could be a clogged radiator, bad cooling fan/fan motor, or in the worst case, a blown head gasket or cracked head or engine block.

Feb 01, 2016 | Cars & Trucks

1 Answer

My 94 dodge spirit is overheating after only about driving 2 miles and there is coolant in radiator and reserve tank.. reserve tank fluid is hot and bubbling.. radiator fan may not be working


Does the temp gauge show overheat? If not, then you're not overheating. Possible you have a head gasket problem,which lets combustion gas into the water and can look like boilover.

Sep 08, 2014 | Cars & Trucks

1 Answer

How to back flush 96 Grand Am coolant system?


Hi Eric, Before you back flush have the pressure radiator cap inspected together with the cooling fan operation. A defect there will result in over heating. To back flush, detach the cabin heater pipes and open the radiator return pipe and adjust the cabin climate control to fully hot. Attach a hose pipe so that water runs opposite to the normal circulation and turn on the flow. Afterwards when refilling remember to open the air bleeder, replace coolant and run water into the system until all air is expelled from the system. Close up and test run. Keep in mind that air in the cooling system will also cause overheating. Regards John

Jul 21, 2013 | 1996 Pontiac Grand Am

1 Answer

Coolant light come on which indicates an overheating condition


You can never run water in the system, water will boil. You must have a 50/50 coolant/water.

Have the system flushed, the radiator can become restricted from old coolant, the fins have very small ports for flow and can become blocked leading to less cooling.

No thermostat means full flow, so this should not be running hot.

Usually the only way a water pump goes bad is when they leak, they are a direct drive, and the propeller never wears out unless at some point someone had to high of a coolant mixture.

Get the system flushed to clean it and have it made into a 50/50, can't have mostly water, coolant dissipates the heat.

If flushing does not help, the cheapest first thing is a new radiator, or get a new core for it, that's cheaper.

Apr 03, 2013 | 1998 Chevrolet Lumina

2 Answers

Radiator overheating


If the overheating is only occasional, it sounds like the radiator still has some blockage that moves around and plugs up again. Try flushing it backwards again. If it continues, consider a new radiator. A radiator is cheaper than head gasket work, which may happen if it keeps overheating.

Nov 30, 2012 | 2002 Mitsubishi Montero

2 Answers

My car overheats very easy.i can drive 1 exit on the highway and the temp goes up very fast. i dont know what it could be. there is always fluid in the reserve area and doesnt seem to be getting low or im...


COULD BE THERMOSTAT IF TOP RADIATOR HOSE IS NOT HOT AND BOTTOM RADIATOR HOSE GOING TO WATER PUMP IS HOT THE THERMOSTAT STICKING PARTIALLY CLOSE.IF TOP HOSE IS HOT THE RADIATOR,ENGINE BLOCK HEATER CORE NEED FLUSHING OUT.IF WATER PUMP WEEP HOLE LEAKING REPLACE WATER PUMP, FAULTY WATER PUMP WILL CAUSE ENGINE TO OVER HEAT.REPLACE RADIATOR CAP MAKE SURE YOU HAVE 50 / 50 MIX SOLUTION ANTIFREEZE AND WATER IN COOLANT SYSTEM. IF ALL LOOKS GOOD CHECK ENGINE OIL ON DIP STICK, IF OIL IN DIP STICK LOOK LIKE MILKSHAKE YOU HAVE BLOWED HEAD GASKET THAT WILL CAUSE ENGINE OVERHEATING WHILE DRIVING CAR IN SHORT DISTANCE AND ENGINE OVERHEATING.

Aug 16, 2011 | 1999 Oldsmobile Alero

1 Answer

Is there not a radiator cap on a 1999 silverado? want to flush sysyem but do you refill through resavoir?


If you don't see a cap, you don't have one. If you are flushing in hopes of correcting an overheating problem, be aware that if the radiator is partially obstructed, the flush chems sold today are too mild to actually do much. The better chems were all banned by the epa.
If you are just doing routine maintenance, easiest method of draining is to remove the lower hose at the radiator, let the system drain, put the hose back on, fill with water and any chems you want to use, run it as per instructions, drain again, fill with more water and repeat with water at least twice before draining and filling with new antifreeze.(do all flushing with heater on full heat) Keep the cap off while doing this so you don't build up pressure and be careful draining hot water. Even though they are mild for the job, chems can still irritate your skin so be careful. When filling for the final time, make sure the system is full and the thermostat has opened before closing it up. Always check everything over for leaks.Any other questions? Just ask!!

May 30, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

How to drain cooling system


Drain the radiator while the coolant is cold. Open the radiator drain plug at the bottom driver side, where bumper meets lower rail, and drain the fluid into a 5-gallon container. If it refuses to open or broke, remove the plastic cover at passenger side and disconnect the lower radiator hose. Do not forget to open the coolant cap, which allows air to enter the radiator core. With all the fluid emptied, refill the radiator tap or with distilled water, leave the cap open, and run the engine until it reaches operating temperature. The goal here is to get the thermostat open, diluting what coolant remains in the engine but the water will start boiling, and burn you out.
Or you can run the engine to get hot but not up to the boiling point. In this case the Flush won't be perfect, but you decrease the danger to burn out. Repeat the drain/refill procedure, until you will get a clear discharge.Repeat the drain and refill procedure two more times with distilled water. The tap water contains chlorine and will corrode the radiator and the cooling system. To fill the radiator, it is recommended to ad 30% volume distilled water to 70% volume concentrated Antifreeze. If you flush the system and rinse with water you must add only 30% water to the antifreeze. There is more water trapped inside the engine compartment, because the thermostat is closed. Make sure to have a coolant density tester. When you finish one of 5 balls must sink, that indicates that you reached 50/50 strength. That means 50% Prestone and 50% Water, which will provide to your car a -34F degree FREEZE-UP Protection , and +265F degree BOILOVER protection. Make sure to open bleeding valve to discharge air pockets from the cooling system. Add coolant.The next day, while engine is cold open the radiator cap, and test the strength of coolant. If it is not quite right, then siphon coolant from the radiator and add antifreeze, or distilled water as necessary. Start the Engine. Untwist the coolant bleeding nipple. If there will be a jet or stream of coolant, that means the water pump is working and is O.K., and there are not air pocket left in the cooling system.
Good Luck.




Nov 06, 2010 | 2002 Dodge Caravan

1 Answer

Overheating on ford bantam


there are three probable causes that may result to overheating one inadequate circulation of coolant within the cooling system. The radiator is clogged with dirt some stems are closed.try to flush the radiator using rad flushing fluid. Second improper bleeding of trap air within the cooling system. Third the water pump blades are worn out inadequate circulation of coolant.

Feb 02, 2010 | 1996 Ford Bronco

1 Answer

My car is overheating. I just replaced thermostat and recently replaced the water pump. I checked for water leaking but dont see any. What could it possibly be


If the thermostat and pump have been replaced, it's most likely the radiator. They corrode after time. Try flushing the antifreeze (not just draining and refilling it, but flush the system with clear water.) Most auto stores, Walmart, etc. carry the flush kit for very little $$. Once it's flushed, refill the system with the correct ratio of antifreeze.

If the problem persists, then it's most likely gunk in the radiator. Auto shops can boil them clean.

Short of all of the above, overheating can also be caused by a cracked cylinder head. If it overheated too bad at any point, it can crack the head and will continue to overheat regularly. Check for antifreeze in the oil. If there "is" antifreeze or water in the oil, the head is most likely shot (and yes, it will still run that way).

Jan 25, 2010 | 1987 Cadillac Brougham

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

33 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...