NEED HELP QUICK!!!

I gotta make a 1500 mile trip tomorrow and my truck's overheating. Took out the 160 stat and replaced with 180, replaced fan clutch. flushed radiator with the water hose for about 30 mins at running temp, and it's still overheating. I don't know what else to do. Not leaking anything either. It's getting up to 235 maybe a little past then it'll drop back down around 190-200. then it'll go back up a few mins after that. If I run anything over 2000rpms it starts getting hot and stays hot. The overheating doesn't start till I get on the highway at a constant 70 mph. any ideas???

Did you follow the "burp" procedure? Sounds like air pockets or cavitating (SP?)

Just read how to do it so I'm gonna try that right now. Any more suggestions? Anyone?

fill the engine through the top radiator hose with the radiator end removed.

air pocket... i was park on incline, or jack up the front end. fill thru rad hose like Red mentioned til it won't fill anymore. reattach rad hose, and up cap reservoir. when the air pockets escape, you'll see the level drop in the bottle. add to cold fill line, cap off, and test drive.

Tried burping and filling on an incline, still didn't work, now the truck's at the dealership. Bad thing is I have t be back in North Dakota by 5:00 am on the 15th. Hope they work fast.

That happened to me on my 99 last year and it was one of the hoses that would colapse. I didnt notice it till I was checking everything and reved it and sure enough the bottom hose was collapsing. mario

Weak hoses would definitely collapse. They used to put a wire coil inside to hoses to prevent that. I guess they quit doing that.

First thing i did was check all the hoses and they all looked good. No cracks or dry rot or anything. I just have to wait till tomorrow morning for the techs at the dealership to look at it. I'll keep ya'll informed.

make sure you use new bolts on the thermostat housing. it might be okay since its a newer truck but on my l31 the bolts were aluminum and one snapped while i was on the highway once from being taken out then back in. it really weakens them.

yeah i had the same overheating problem and did all of those checks also...ended up being that I had a warped head... :bash: that didn't set off to well, but i hope thats not the problem with yours, it's just kinda a little bit of a pain :lol:

Well, the problem's fixed after $1,386.11. So, I start the drive back up to ND on the 12th at about noon. get about 20 miles from my moms and it starts again. Said the heck with it and turned around. Being as I've spent a lot of money driving all the way down to houston I'm BROKE. Unfortunately I had to break down and ask my mom for a loan. Took it to the dealership at about 1:30 on the 12th. Explained to the service tech that I Absolutely had to be back in ND by 5:00 am on the 15th and that it would be about a 30 hour drive, so I needed them to have it done asap. Asked the service tech to give me a call within the hour to let me know if they'd be able to even take a look at it that day. Went home, took a nap and woke up at 4:30 with no calls on my cell. Called and talked to the Asst. Mgr. explained my sit. again and he said he'd make it their first priority in the morning and that they'd know something by 9:00 am. Next morning I go up there in person and talk to him. One of the techs had just gotten done getting it up to temp and it hadn't overheated. Like i had told the incompitent jack-ass that had forgot to call me: "it only heats up on the highway after about 10-15 mins" Said he'd take it out on the freeway personally in a lil while. And he'd call me back about lunch time. Got the call at about 12:30 saying that he shot the radiator with a temp gun and got numbers saying that there was blockage and I needed a new one. Also said that my belts were almost shot and that the water pump had a minor leakage from the bottom. So i went ahead and had them replace that also. They had it done at about 6:00pm on the 13th and i left Houston at about 7:00pm. Drove straight through to ND with my motorcycle in the bed and my wifes Golf on a tow dolly. Didn't do too bad on gas either. Averaged about 14 mpg's. at an avg. speed of about 57 mph. Total drive took me 27 hrs

Good to see you got it fixed. Radiator blockage? I guess someone dumped some leak stop in there some time or other.

holy crap thats a lot of money for a radiator :eek:

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jul 17 2007, 07&#58;46 AM) [snapback]99717[/snapback]</div>

Quote:

---

Good to see you got it fixed. Radiator blockage? I guess someone dumped some leak stop in there some time or other.
[/b]

---

I&#39;m thinking it&#39;s because it sat up the past two winters in freezing temps and the calcium deposits and other sediments from the tap water settled to the bottom. Winter of &#39;05 was partially my fault, didn&#39;t drive or start it as much as I shoulda. Last winter was all my wifes&#39; fault. She might have started it twice while I was in Iraq.