Ford F-150 - 1997-2003 :: V8 Started Overheating - Oil In Coolant

I have a 2003 F150 4.6 Triton V8.... My truck started over heating again after replacing the Thermostat and Water Pump later this summer.... Well I checked Coolant and I have Oil in the Coolant. I see Nothing wrong with the Tranny Fluid and see nothing wrong with the Oil.... What could be the problem??????

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Ford F-150 - 1997-2003 :: Idle Started To Flux With AC On And Started To Spray Coolant Mix Through Vents

I have an 01 SuperCrew with the 4.6L and it's idling really rough. Last summer, the idle started to flux pretty bad with the a/c on and eventually, it started to spray coolant mix through the vents and I lost heating about the same time. So, local dealership changed out the heater core and that is working again.

Well...I still have the idle flux, it fluxes from between 400-1000rpm at idle with the a/c on, it's a constant flux....up/down/up/down/up/down. A/C off and the idle is rock-solid steady. Dealership has changed 4 ignition coils over the last couple of years along with an EGR or PCV (whatever it's called) valve as well, none of which was for the idle problem, but somewhat associated. Where I should be looking?

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Ford F-150 - 1997-2003 :: Overheating In Hot Weather - Restricted Coolant Flow?

I have an 1997 F150/4.2 V6/220,000 miles/4x2. During hot weather (over 90F) the engine slowly overheats. While driving on the interstate (from Indy to Fort Wayne), the coolant temperature shows normal on the gauge. Slowly the temperature gage creeps up to close to the red area. I am running the A/C.

When I switch the heater on and the heater fan at max, the temperature gauge drops pretty quickly to a normal range. I switch off the heater and the A/C back on, then it takes 30 minutes for the temperature gauge to start rising again.

When I open the hood when the gage shows close to the red area, the upper coolant hose has a lot of pressure (cannot squeeze it), which would mean that the thermostat is open and the waterpump is working. Also the fan is running fast. The coolant was changed out a few weeks ago and the coolant level is at normal level when the engine is cold. At lower ambient temperatures, there is no overheating. I am puzzled what the problem can be. I am thinking of a restricted coolant flow. Looking for solutions to my problem.

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Ford F-150 - 1997-2003 :: P0306 And P0174 Codes - Engine Overheating And Coolant Reservoir Dry

I have a 1999 4x2 F150 XL, 4.2L engine, 5-speed trans., about 197,600 miles and have been getting P0306 and P0174 codes. The check engine light came on and stayed on. Also, pretty much randomly, my engine over-heats and the engine compartment coolant reservoir is suddenly dry as a bone. I bought the truck new and this has only happened twice, during normal driving.

Clearing the 0306 and 0174 codes. Not sure what to do about the over-heating thing.. What I've done so far to try to clear the codes is the least expensive stuff:

=> Replaced both forward O2 sensors, have read where the two rear O2 sensors don't necessarily need to be replaced so I haven't replaced them yet. The sensors that came off are Bosch, as are the ones that I bought from Autozone and installed.
=> Replaced old spark plugs with Motorcraft brand, gapped to 0.054 in.
=> Replaced old spark plug wires with Motorcraft spark plug wires.
=> Cleaned the MAF sensor
=> Replaced PCV valve and replaced an section of elbow hose near it. The original elbow had a big hole right at the 90-degree bend, on the inside.
=> Replaced a cracked, dried-out, vacuum hose coming from the evap cannister purge valve and going to the front underside of the upper intake manifold.
=> replaced fuel filter.

After doing all this, I took it out on the road long enough for the computer to wake up and relearn and got the check-engine light again. Only this time it was flashing. I gather from reading in this forum that a flashing CEL is worse than a constant-on CEL so I drove back home and have yet to take it back out.

After reading about problematic ignition coils, I followed a procedure in my Haynes manual to check mine out:

=> Verified the correct resistance values at the electrical connector (0.7 ohms),
=> Verified battery voltage is present at the harness side of the electrical connector (about 12.6 volts),
=> checked the resistance values between the three sets of 'towers'. Starting from front to back, the resistance readings were 13.06 kOhms, 13.12 kOhms, and 12.98 kOhms. The correct range in the Haynes book is 6.5 to 11.5 kOhms so I thought maybe my ignition coil was bad.

I located a Motorcraft ignition coil at a local O'Reilly Auto Parts store, went there, and was able to check the resistance values on that new one. Turns out the resistance on the new one at the parts store is pretty much the same as that on the one on my truck (all three coils were 13.something kOhms), so I haven't replaced the ignition coil. I guess either my Haynes book is probably incorrect or the ignition coil on my particular F150 has different resistance values than the rest of the vehicles covered by that manual.

Next things I'm looking at replacing:

=> egr valve and the associated line to the DPFE sensor. (DPFE replaced a few years back, as a result of a P0401 code)
=> iac valve
=> upper intake plenum gaskets

I'm kind of at a loss at this point. I hate to just continue replacing things without knowing that I'm replacing the right things.

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Ford F-150 - 1997-2003 :: 2000 - Coolant Started Leaking?

My 2000 F150 started leaking from a small pin hole in the coolant bypass pipe that is located on the top / front of the intake manifold, it is the pipe that flows toward the heater core. I decided to remove it without pulling the intake "being lazy". I almost had it and it snapped, while trying to retrieve the piece that was still in the hole It broke and part fell into the intake, I assume into the head in one of the coolant ports. I have removed the intake and still cant seem to see it or retrieve it. I have tried a shop vac, and a magnet wand, still nothing. While pulling a vacuum I noticed that I had flow / suctions from all my cooling ports on both heads, the line from the heater core, and even my top radiator hose.

So I guess my question is, If I cant get this out and it fell into one of the water jackets in my block will it hurt anything??? I know rust and other things end up in there anyway. I still haven't given up on removing, I am really in need of answers,, in case I cant remove it. I do know the flow of coolant is up through the pipe I was trying to replace, and either through the heater core (hose), thermostat, or maybe the bypass back to pump.

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Ford F-150 - 1997-2003 :: 2001 - Coolant Started Leaking

I have a 2001 F150 5.4 triton. It recently started leaking coolant so i stopped driving it until i could get it to the shop. The day i took it to the shop, i stopped 3 times and checked the coolant level and i kept it full while driving it to the shop. The mechanic that was fixing it kept putting it off and had an excuse every day why the truck wasn't ready yet. It stayed in the shop almost a month for him to put a new intake on the truck. The truck ran fine on the way to the shop. I finally got tired of excuses and delays so i went to the shop and asked him if it was ready. He told me now the motor is rurnt and water is getting in the oil.

I checked the oil before and after i got there and the oil had no water in it. He cranked it up and the motor had a loud rattle in it. He wants to rebuild it. I want everybody's honest opinion about this deal. Do yall think the motor just burnt up or do y'all think he could of screwed the engine up on purpose to make more money because i always pay on time? Like i said, the truck had 200,000 miles on the motor but i never once had a lick of engine probs. I just think he could have accidentally or purposefully messed the engine up.

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Golf IV / Jetta IV :: 2004 GTI 1.8t Started Overheating - Little Steam Coming From Coolant Overflow Tank

I have an 04 gti 1.8t and last night it started over heating. I pulled over and checked the coolant and the oil but everything looked good. I let it cool down and drove it home. When I popped the hood there was a little steam coming from the coolant overflow tank but I saw no leaking. I decided to vent the pressure off the system and then I got a little drip on the passenger side close to where the inter cooler is. I can't pinpoint the leak though.

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Subaru - Legacy :: 1997 - Engine Started Overheating

So after hitting a deer in my car a few weeks ago I fixed it and drove it around town a little bit and it ran fine. But 15 mins onto the highway the next day it overheated. It was out of oil, which I had checked a couple days before when I fixed it. so after it had cooled down I filled it up with Coolant and oil and started driving it home. the roads where bad and I wanted to go easy on the engine so I took it at about 25-30 MPH. as I was driving it would slowly overheat, but I could get it to start cooling down but dropping it into neutral and just letting it idle while I coasted. I had to get off the frontage road and take the highway the last couple miles before town so I turned the engine off and let the fan run for about 20 mins, and started off again, the weird thing was when I got on the highway I was doing about 55Mph and the engine didn't try to overheat at all, but as soon as I got back in town and started doing 25 again it started overheating again. another thing that is happening is that the car will blow air through the heating system but won't heat it. I realize that was long but I'm really at a loss. I replaced the head gaskets less than a year ago so it's not from worn gaskets.

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Passat (B5) :: 1997 VR6 Started Overheating - Fans Just Quit Running

My car just started over heating and I checked the fans and they are not running. I'm new to the VW family and although I love the way this car drives I've been baptized with quite a few problems.

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Buick - Century :: 1997 - Overheating / Low Coolant Light Flashed On Dashboard

I have a '97 Buick Century. I noticed the smell of coolant, and the "Low Coolant" light flashed on the dashboard. However, according to the temp gauge on the dashboard, the car was at normal temperature. I pulled over and opened the hood. The coolant in the overflow tank (not the radiator) was boiling, and sputtering out.

I took the vehicle to a nearby shop, where they said it needed a new "Coolant Level Switch." They told me they put a new one in and did a coolant flush, and sent me on my way.

About a mile down the road, the "Low Coolant Light" came on again. I pulled over and found that there was ZERO coolant in the engine. I filled it myself, and continued driving. Over the next few days, I checked the coolant every day and it stayed normal. I drove a bit, but never more than a few minutes, so the car didn't have a chance to overheat.

Then, today, I drove it a good distance for the first time since the original incident. After a few minutes of driving, I smelled coolant and pulled over. The coolant in the overflow tank was once again boiling and bubbling out. What it might be?

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Dodge - Neon :: 2003 - Car Started Overheating

My 2003 Dodge Neon started overheating. We replaced the thermostat, temperature sending unit, flushed the radiator, checked for blockages, cleaned the radiator, changed the head gasket and water pump.It can run for about 10-15 minutes driving or 30 minutes idling before it overheats. The fans will kick on. The thermostat opens up. Pressure builds up on the radiator hose. When it gets hot, it boils back into the reservoir.I've been careful not to let it get into the red since the head gasket change.We sent the head off and had it planed.

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Ford F-150 - 1997-2003 :: 2001 - A/C Overheating Within Minutes?

'01 F150 XLT 5.4L EFI 207,000 miles

I've had this truck since '03 @ 45,000 mi and have loved it ever since. It hasn't failed me yet, until now. Living in TX with no A/C is the pits,

He first replaced the large hose assembly (with a non Motorcraft part) due to a pinhole then recharged the system. It cooled great until the pressure pop off valve (or whatever it's called) blew all the freon out.

His first suspicion was the fan clutch, which was replaced with a motorcraft fan clutch. Next he used his a/c machine to evacuate/flush/recharge the system - problem persisted. Lastly, he cleaned the radiator and condenser fins and recharged again. The system still overheated and lost the freon.

While the freon is in the system it cools like never before but after driving it, parking for a while, then re-starting it overheats within minutes.

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Ford F-150 - 1997-2003 :: V6 Slowly Overheating In Hot Weather

I have an 1997 F150/4.2 V6/220,000 miles/4x2. During hot weather (over 90F) the engine slowly overheats. While driving on the interstate (from Indy to Fort Wayne), the coolant temperature shows normal on the gauge. Slowly the temperature gauge creeps up to close to the red area. I am running the A/C.

When I switch the heater on and the heater fan at max, the temperature gauge drops pretty quickly to a normal range. I switch off the heater and the A/C back on, then it takes 30 minutes for the temperature gauge to start rising again.

When I open the hood when the gauge shows close to the red area, the upper coolant hose has a lot of pressure (can not squeeze it), which would mean that the thermostat is open and the water pump is working. Also the fan is running fast.

The coolant was changed out a few weeks ago and the coolant level is at normal level when the engine is cold. At lower ambient temperatures, there is no overheating. I am puzzled what the problem can be. I am thinking of a restricted coolant flow.

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Ford F-150 - 1997-2003 :: Overheating At Highway Speeds

1999 F150, 6 cyl. 4.2L, 233,000 miles. My temp gauge went way high on the interstate so I assumed I had a bad thermostat. replaced it with a genuine Ford themostat, added coolant and here's where I'm at.

1. Let it idle up to operating temp. When it was warm, the heater was blowing cold air.

2. Thermostat opened up, top radiator hose was hot and full of coolant, still no heat in cab.

3. Took it for a ride on the hwy. Heat started to work in cab, temp gauge went way up. I slowed down and went home down a side road. Temp gauge went back to normal and stayed there. Only driving about 30 mph.

I don't get why I'm overheating at 60mph. My best guess is I have some sort of obstruction in the cooling system.

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Ford F-150 - 1997-2003 :: Truck Overheating Because Temp Just Keeps Climbing

Truck runs cool when driving around town about 177. Get on the highway and the temp goes to about 195, go up a mountain pass she climbs to about 210 and I feel that If I dont back off the gas the truck will overheat because the temp just keeps climbing. Go down the highway again on a flat stretch of highway and it drops to 195, get into town temp drops to 177 and even lower when i just let the truck idle.

Truck has a brand new 195 thermostat, fan clutch is only a month old, water pump is about 2 years old, this truck has had head gasket issues in the past but every year I put in the bars stuff and have not had a problem with it since, I started doing the bars stuff about 4 years ago. This is the stuff you flush the system first with not the pour in stuff. 1997 f150 4.6l

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Ford F-150 - 1997-2003 :: Cooling System - Overheating Within 3 Miles?

2003 F-150 Supercrew w/4.6 V-8, 2-wheel drive, 219,000 miles and very well maintained. I'm getting an intermittent overheat condition that I can't figure out. Coolant level is good and I just replaced the thermostat. My OBDII app showed it running at a constant 207 degrees (195 thermostat) after the thermostat. Appears to have good pressure at the cap. It ran great for 30 minutes at idle and then did fine for a five mile test drive.

The next day in the morning it overheated within 3 miles of the house (heat was on) and you could smell it. Pulled over and let it sit for 20 minutes and started back up and it stayed constant at 207 all the way to work (11 miles). It sat at work for about 7 hours and ran great all the way home (without heat, with heat, with air cond). Then this morning it did it again, overheating about 3 miles from home. This time I pulled over and shut it off for about three minutes. Turned the key on without starting and the temp was already dropping again. So I started it up and it continued to drop down so I drove to work with no more issues. This afternoon again went home and it never overheated.

I'm expecting it to overheat again in the morning. I'm gonna go live on the OBDII for temps during the drive tomorrow.

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Ford F-150 - 1997-2003 :: 2000 - Overheating Above 55 Mph - Replace Engine?

I own a 2000 F150 4.2L (I think off the top of my head) v6 XL model. For the past couple of years I've had an issue with overheating. So far I've had the following replaced:

Radiator
Thermostat
Radiator Cap
Water Pump

The intake manifold has been repaired, that was the first item to have some work done to it. The shop I took it to said the coolant hose that runs into the manifold was corroded at the entrance to the manifold. They stated there was no way to actually replace the hose, but they gave me two options:

1. replace the entire manifold or
2. cap the existing entrance port, drill a hole into the manifold next to the port, and run a new hose.

I chose the cheaper option which I suspect is part of the problem. Now to the problem.

I can drive around town all day long no problems even in 100+ degree Oklahoma summer heat. I left it idling on the side of a street for 2 hours during summer and no problems. The moment I get the truck to 55mph it starts to overheat. Not just overheat, but peg completely out in just over a mile after hitting 55mph.

Once I drop the truck down to about 40mph the temp starts to lower, but will fluctuate between normal and 3/4 to max.

What I need to look at? I've been told head gaskets, but there's no leaks and no water in the oil. I've been told to replace the engine, which if I could afford that I could afford a down payment on a new truck. It's a bit frustrating at best.

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Passat (B5) :: 2003 - Overheating / Fan Spinning / Check Coolant Warning

I was cleaning my passat the other day and I took my air filter out, however I didn't disconnect the wires and hoses on top of the box, I just raised the top cover up and pulled the filter out and cleaned it and checked it and put it back in, I also took out the cabin filter out and cleaned it and put it back in too, then I started the car and took it for a ride and the car started over heating, it keeps giving me STOP CHECK COOLANT warning and the temperature rises all the way to max RED.

I check the coolant level is at level and the radiator fans are spinning, however I noticed the lower hose that goes from reservoir to the radiator is cooler than the other hoses, what could be the problem? The water in the reservoir is hot too, could this be from a faulty thermostat? a sensor? or somewhere I read there is a fuse somewhere in the engine bay? I'm not too familiar with these 1.8t engines, the temp sensor was acting funny before too like sometimes it would go all the way to zero and stay there and go up and go down to zero and then raise, which I think there might be a bad connection or bad sensor.

I forgot to add the car is a 2003 1.8T.

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Ford F-150 - 1997-2003 :: Replaced Water Pump - Overheating Occasionally - CEL On

We had my son's water pump replaced in his 97 F150. It is now occasionally jumping to completely hot. If you turn it off and back on it returns to normal. The power to the engine is cut when it shows to be overheating. The check engine light has now come on.

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