Ford F-150 - 1997-2003 :: 1999 - Radiator Hose Have No Pressure?
Jan 7, 2015
this winter i have found that my truck's heater core isn't flowing, meaning i have hot on the upper hose and the lower is luke warm and there is no heat while running down the road. I have changed the t-stat and the heater core and radiator are new as of four years ago. last year i could roast a chicken with the heat. i also have no pressure in the radiator hose at all, engine runs at normal temp, no over heat situation and i don't smell any loss of antifreeze.
1999 f-150 4.6 150k
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I blew some hose in my engine and radiator fluid was spraying out of it like crazy. It's on a 1999 f150 4.6 on the passenger side near the rear of the engine but about even with the top of the engine...
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Is it difficult to replace the lower radiator hose on a 5.4L? I'm mainly thinking about access to the connection at the water pump.
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I have a 2000 F150 with 5.4 L motor. The last two trips I have had the top radiator hose come off while under heavy load (pulling a long hill) after 5 hours of driving. So far I have flushed the radiator, checked the thermostat, and refilled with G05 Gold and distilled water 60/40 ratio. I do not hear any gurgling in the heater core. Heater seems to work great.
The stock temp gauge shows it right in the middle range between Hot and cold, right before it blows the hose off. I have replaced top and bottom hoses and put new stainless steel clamps at all end except the top, where I am using the OEM clamp that came with the truck. I thought about replacing the top clamp as well but did not want to blow out my radiator, if in fact it is developing high pressure.
Do these clamps get weak with time? Should I use a vacuum attachment on the fill/overflow tank to remove all air before refilling?
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I'm going to be replacing my lower radiator hose so figured might as well switch over to the extended life stuff going to probably go with the Delo ELC.. Supposedly it's good for 750k.
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I've noticed that my radiator hose doesn't have any pressure anymore, even after a long drive you can squeeze it nearly together, it is still hot like normal and the heater puts out hot air, the temperature gauge sits between half way between 1/4 and 1/2, would this be the radiator it's self, the thermostat or the water pump that may need replacing, there is no leaks that I can find or see...
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I've noticed a spring of coolant shooting out of a connector that I'm assuming is connected to the bottom radiator hose via a smaller hose. Is there a hose that splits off the bottom radiator hose that is smaller. The leak is not coming from the hose, but the connector it's hooked to. Is this a replaceable part? What is it for?
97' Aerostar... 3.0 V6 with AC
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I have replaced a head gasket on my 2001 civic LX recently. I have drain the coolant and put it back on again. Now I have idle issues, the car starts fine with high RPM (because it is cold) about 5 min latter the RPM changes, it revs low and high (about 2000 rpm) when it should be idling normally. I have taken the radiator cap (before i start the engine) and run it a while with the cap off to purge any air pockets, no luck. Another thing I have realized that there is a pressure build up in the upper and lower radiator hoses when it is running with the radiator cap on. How to fix this problem?
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Well I was fueling the truck today and I opened to hood to check it out and noticed that there was no pressure in the cooling system by squeezing the upper hose. I did have a spare degas bottle cap and removed the old one slowly and replaced. I have been driving over 30 minutes and it is close to 100 degrees.
I then drove on down the road, the truck is not getting hot. I stopped to look at some running boards and the truck was running and then I came home and still no pressure, the truck is still running, I removed the cap and no pressure, I then removed the small hose going to the top of the degas tank and no coolant came out. I turned the truck off and disconnected the upper hose and some coolant did come out.
Is this normal? The truck runs just fine, just has me worried. I just bought the truck and the previous owner recently replaced the water pump, T-stat, hoses, etc. All parts were bought at O'Reilly. So everything looks good.
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I had to replace injector cups due to diesel in the coolant. Then I had to replace the degas bottle because it was swollen and looked like the michelen man. Then I had to replace the radiator cap (again) because I suspect that the diesel in the coolant had dissolved the seal in the radiator cap and it wouldn't hold pressure. Now I've got a bunch of new parts in there.
I parked yesterday, popped the hood -- and heard the radiator cap slowly blowing off pressure. It was the type of sound that you hear when a tire has a slow leak. I tightened the cap and the sound didn't stop. I REALLLY tightened the cap to the point where I felt as if any more tightening would cause the threads on the degas bottle to strip, and the noise lessened.
Unless I'm mistaken, a radiator cap is supposed to hold pressure to 16psi and then release all at one time, not slowly bleed off pressure with a hissing noise.
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My high pressure power steering hose just blew at the "B" nut at the pump. Meaning, the fitting is still in the pump but the line is out. Do I need to replace the whole line or is there a retainer I can swap out?
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Just picked up my truck from the dealer after a trans flush. While it was there I had them replace both windshield wiper nozzles. They called and told me the hoses needed to be replaced as well--- OKAY fine do it.
Come home and decided to "make sure" the trans fluid was at the correct level.
Open the hood to discover a loose black hose approximately 1/4" or so in diameter coming out of the radiator shroud directly at center of the top. The end of the hose was somewhat towards the passenger side battery.
I figured okay the tech probably just left my old windshield wiper hose on top of the motor and forgot to discard it...
I follow the hose and it appears to go in between the rubber seal for the shroud and the plastic housing. I looked back behind the fan and can see the hose twirled around an aluminum or stainless steel pipe coming up just in front of the fan but behind the numerous condensers...
MY question is two fold: Should this hose be here, or is it indeed the wiper hose that got sucked into the fan?
if it is supposed to be here, what does the end that was leaning towards the passenger battery connect to? it certainly appears to have been previously connected to something whether the washer or some other barbed fitting....
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I'm trying to troubleshoot a leak on my 08' F250 with a 6.4 powerstroke. It's been dripping coolant when cold pretty aggressively. Once the truck heats up, the coolant leak seems to mostly go away.
Here's a picture of the drip, it's marked by a dart, so you can see the location from the top (second pic). The radiator house connection around the engine seems dry.
Pic from Top ....
What's hidden here that could be causing the leak?
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Where this small leak coming from. Under my radiator hose. Took a pic of the leak.
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I picked up a used 99 Passat with 79000 miles. I just changed the oil and found the pan pretty well sludged up - typical from what I read on the forum. I noticed the coolant looked pretty diluted - so I drained and filled with 50/50 mix. After starting I felt for the upper and lower hoses heating up and the lower one never did. I guess I should have tested this out before draining and refilling - also typical. Question is - is this a thermostat issue? My Haynes manual says if the top hose becomes hot the thermostat is operational. Heater has plenty of heat, temp gauge stays pegged at 190 degrees top dead center of the gauge.
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I can't find canister pressure valve hose. It looks cut from the pressure valve in some way. Tried following it from gas tank but I've lost it through the chassis.
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My uncles 1999 v10 started to leak from the high-pressure hose on the gearbox. Replaced the hose which lasted for a short time but is now leaking at the same spot. The hose swivels, is this normal, seems like a dumb design for a pressure hose. Also is there a certain trick to doing this hose? He also insists on using PS fluid instead of the ATF it calls for. Could this cause a problem with the seal?
Edit: Also the truck has been lifted on 35s since 16k miles and its now roughly at 170k. He tows with it as it is his work truck. But the truck is well taken care of.
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'97 F150 4.6L 4wd automatic... My gauge jumps around, sometimes it works and other times it shows no pressure. Could that be the oil pump? Or is the gauge most likely bad? Whats the actual purpose of an oil sending unit?
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98 F150 2wd 5.4 -even though VIN says its "W" 4.6; it has a 5.4 with 4.6 timing setup-found. But that's a whole other story...
So, Replaced heater core. did the blend door too.
A week later it overheated and blew a heater hose off the core at the firewall (several times). Temp was up and down, forced me into cylinder head protect mode, so i called my mechanic.
Mechanic used a sniffer (blue liquid turns yellow) in my overflow tank and there was exhaust gas in it... so we replaced head gaskets, intake, timing, water pump, radiator and the rotted out rad support.
Got it done and back on the road, but a few weeks later and the heater hose quick disconnect blew off again, spewing coolant all over (again). This was what we thought was part of the original problem- head gasket allowing cylinder compression into the coolant passages. the little rubber hose that comes from the back of the intake and goes up into the heater core builds enough pressure to pop the disconnect right off and I dont know why. Like I said- I thought it was the head gasket blowing pressure into it but that's all been replaced. Why the pressure would be so high at that point, and how do I correct this?
This is my daily driver, so for now I've bypassed the heater core, but I'm afraid that pressure is gonna burst a hose and/or fitting again.
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I found a leak today on my 2001 Ford F150 Super Crew, 5.4 engine. In the picture, it was leaking to the right of the spark plug, behind the hose. It was bubbling up from the metal. It hasn't been overheating except when I got home and idled with the AC on. What I'm facing?
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Just like the title says oil In my rad! Anyway here's what I've seen....I noticed that I've been having to put oil in my truck more often than I need to. I thought maybe I was leaking somewhere but I wasn't. So then I thought I was burning it but no smoke. So then I was reading on this forum and someone mentioned oil in the rad. So I checked and it was pretty black in color so I figure that's what the problem is. My question is would it be a head gasket or intake? I also read a quote from Moto Mel on here that it could be some kind of adapter that is located on the lower left side of the motor that has o rings that can go bad and cause this?The milage on my truck is 145000 and running great (other than this). No overheating or anything.
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