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Old 12-03-2012, 01:17 AM   #1
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thermostat problem

I heard this is a common problem on our 4.0 mine has 41k and i want to change it before it goues out on me and leaves me stranded on the sahara dessert. Is it easy to do? I havent found any videos on how to do it.. Or should i take it to a mechanic.. I plan on changing the thermostat and the housing
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Old 12-03-2012, 07:25 AM   #2
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It's pretty simple there are 4 screws just to the right of the engine block you can't miss it. From what I've been told it pretty much screws in and out. The shop charged me $300 150.00 for the part and $50 for the coolant and $100 for labor.
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Old 12-03-2012, 07:31 AM   #3
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Mine exploded on me. But when I fond out how easy it was, I felt stupid. Also get a new coolant reservoir cap, when you do it. It's very simple, you can consult the how to's on you tube for the Ranger.
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Old 12-03-2012, 12:21 PM   #4
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It's pretty simple there are 4 screws just to the right of the engine block you can't miss it. From what I've been told it pretty much screws in and out. The shop charged me $300 150.00 for the part and $50 for the coolant and $100 for labor.
Dammmn 50 for coolant??? its around 19$ for a gallon and for the parts the housing is 35$ and the thermo is 9$
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Old 12-08-2012, 07:13 PM   #5
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Dammmn 50 for coolant??? its around 19$ for a gallon and for the parts the housing is 35$ and the thermo is 9$
I know, I was pissed but it happened right before I leaving town.
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Old 12-08-2012, 10:39 PM   #6
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My starting leaking at 60k miles, apparantly that's when about 90% of peoples do go out on the 4.0...but it's not too difficult of a repair
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Old 12-08-2012, 11:29 PM   #7
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I was thinking on knockin it down at 50k before it knocks me up on the road
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Old 12-09-2012, 10:32 AM   #8
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I was thinking on knockin it down at 50k before it knocks me up on the road
And before it spews coolant all on the inside of your engine bay...looked like my engine threw up!

---------- Post added at 11:32 AM ---------- Previous post was at 11:31 AM ----------

Quote:
Originally Posted by Andy714
I was thinking on knockin it down at 50k before it knocks me up on the road
And before it spews coolant everywhere!
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Old 12-09-2012, 05:57 PM   #9
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Definitely let me know how it goes. I just hit 51k on mine and sounds like I might have to take care of it as well before I am forced to do it.
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Old 12-09-2012, 06:03 PM   #10
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Mine went 4 days after I got the car...
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Old 12-09-2012, 06:07 PM   #11
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That's unfortunate. My clutch went out 2 weeks after I bought my car but I told the car salesman about it started to wear out when i test drove it. He assured me it was nothing and said he had confidence in his car that if the clutch was bad, he would replace it. Sure enough, I got it looked at and it was bad. Good thing was that he kept to his word and paid me for the clutch and installation. I got the spec stage 1 clutch from americanmsucle.com
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Old 12-09-2012, 11:22 PM   #12
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how do you know when the thermostat is going out
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Old 12-10-2012, 12:11 AM   #13
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how do you know when the thermostat is going out
I dont think it gives you any hints that its about to fail.. But once it goes bad your car will overheat and if youre far from home youre going to have to have it towed
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Old 12-10-2012, 09:02 PM   #14
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Originally Posted by Andy714

I dont think it gives you any hints that its about to fail.. But once it goes bad your car will overheat and if youre far from home youre going to have to have it towed
Wrong....you'll have coolant leaking under your car and it'll be in your engine bay, trace it to the source and there ya go
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Old 12-10-2012, 09:55 PM   #15
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Wrong....you'll have coolant leaking under your car and it'll be in your engine bay, trace it to the source and there ya go
That didnt happen with me. It just failed out of the nowhere
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Old 12-10-2012, 10:07 PM   #16
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When the thermostat housing splits there is no warning before hand. That was my experience too. No leaks on the garage floor the week before; nothing on the day it happened. No coolant odor from the car at all.

Nothing on the first two passes at the track.

On the third pass, did the burn out and had just prestaged when the starter waved me off and said "you're overflowing". There wasn't any sign of spillage from the burnout box up to where I prestaged. Pulled back to the pits, popped the hood and started it up - and coolant was spewing all back in the valley between the heads.
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Old 12-10-2012, 10:18 PM   #17
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That didnt happen with me. It just failed out of the nowhere
Mine came out of nowhere too. At about 98k miles just a couple of months after I got it. Extended warranty covered it.
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Old 12-12-2012, 10:26 PM   #18
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Quote:
Originally Posted by Andy714 View Post
I heard this is a common problem on our 4.0 mine has 41k and i want to change it before it goues out on me and leaves me stranded on the sahara dessert. Is it easy to do? I havent found any videos on how to do it.. Or should i take it to a mechanic.. I plan on changing the thermostat and the housing
Haha remember when I told u I got stranded in the Vegas desert? Lol
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Old 12-12-2012, 10:29 PM   #19
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Haha remember when I told u I got stranded in the Vegas desert? Lol
Haha i knoww thats why i want to take care of minee
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Old 12-12-2012, 11:06 PM   #20
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Haha i knoww thats why i want to take care of minee
Haha it's easy! Did you do your stripes?
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Old 12-12-2012, 11:14 PM   #21
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Haha it's easy! Did you do your stripes?
I did but i kinda messed up so i took them off. Do you have the gun or spray cans
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Old 12-12-2012, 11:34 PM   #22
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I did but i kinda messed up so i took them off. Do you have the gun or spray cans
The cans lol ima boss to with it tho!
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Old 12-12-2012, 11:40 PM   #23
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Haha well it was my first time it was fun.. I did the deck panel and hood grills.. Came out good

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Old 12-12-2012, 11:54 PM   #24
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When the thermostat housing splits there is no warning before hand. That was my experience too. No leaks on the garage floor the week before; nothing on the day it happened. No coolant odor from the car at all.

Nothing on the first two passes at the track.

On the third pass, did the burn out and had just prestaged when the starter waved me off and said "you're overflowing". There wasn't any sign of spillage from the burnout box up to where I prestaged. Pulled back to the pits, popped the hood and started it up - and coolant was spewing all back in the valley between the heads.
+1
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Old 02-23-2013, 03:15 PM   #25
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Mine came out of nowhere too. At about 98k miles just a couple of months after I got it. Extended warranty covered it.
Your extended warranty it's by porfolio, my car just overheated out of no where, no leaks or nothing. Dealer just told me its my thermostat and that he has been going on and off with porfolio extended warranty and so far they are denying to fix it.
I was informed if I want to fix it without the warranty it's 410 dollars...
Needs some advise
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Old 02-23-2013, 03:20 PM   #26
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Your extended warranty it's by porfolio, my car just overheated out of no where, no leaks or nothing. Dealer just told me its my thermostat and that he has been going on and off with porfolio extended warranty and so far they are denying to fix it.
I was informed if I want to fix it without the warranty it's 410 dollars...
Needs some advise
410$ is a lot !! I haven't done mine I'm going to do it at 50k but folks here say its an easy job
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Old 02-23-2013, 06:02 PM   #27
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Yeah dealer said he was going to talk to his boss on Monday and see if they try doing it by warranty or something. If they can't I think I'm just going to drive it out and park on the parking lot try to change it myself. I mean it's less than 30 dollars of parts for 400 bucks
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Old 02-23-2013, 09:34 PM   #28
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Yeah dealer said he was going to talk to his boss on Monday and see if they try doing it by warranty or something. If they can't I think I'm just going to drive it out and park on the parking lot try to change it myself. I mean it's less than 30 dollars of parts for 400 bucks
Yeah bull crap paying them! I did it myself and saved a ton!
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Old 02-23-2013, 09:42 PM   #29
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Was it really easy, how much time it took you and what other parts you had to remove...
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Old 02-24-2013, 09:11 AM   #30
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Was it really easy, how much time it took you and what other parts you had to remove...
I've got the 4.0l so I just had to take out the air tube and pull off the throttle body which is not difficult and also I was putting on my throttle body spacer so it worked out lol...just don't lose the pin that holds the thermostat sensor in the housing! Cause I did and had to Jerry rig a paper clip in held my high strength engine epoxy! Still works though! Lol
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Old 02-24-2013, 09:11 PM   #31
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Was it really easy, how much time it took you and what other parts you had to remove...
It should be pretty easy on the GT as well. It looked better built. In any event it shouldn't be too hard to fix on your own.
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Old 03-08-2013, 08:49 PM   #32
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So the dealer couldn't fix it under warranty, the advisor did not charge me the diagnostic fee of 115 after talking with him for a bit, I couldn't fix it in the parking lot myself since I would had made a mess with anti freeze coolant. But I did had the hood open like for 15 min while I bought coolant and the the thermostat from the part department.
I was planning to fix it myself and on my way home I stopped by a small shop, guy told me 45 bucks to fix it and since it look like it was going to rain 45 bucks seemed really good. The mechanic let me looked what he was doing the hole time... He removed the air intake and 3 other pipes since the thermostat was almost in the bottom. Alot of antifreeze cane out. Added almost two gallons of antifreeze after. Easy fix for the future.
30 dollars for the thermostat
10 for the seals
28 for the antifreeze
45 labor
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Old 03-08-2013, 08:51 PM   #33
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So the dealer couldn't fix it under warranty, the advisor did not charge me the diagnostic fee of 115 after talking with him for a bit, I couldn't fix it in the parking lot myself since I would had made a mess with anti freeze coolant. But I did had the hood open like for 15 min while I bought coolant and the the thermostat from the part department.
I was planning to fix it myself and on my way home I stopped by a small shop, guy told me 45 bucks to fix it and since it look like it was going to rain 45 bucks seemed really good. The mechanic let me looked what he was doing the hole time... He removed the air intake and 3 other pipes since the thermostat was almost in the bottom. Alot of antifreeze cane out. Added almost two gallons of antifreeze after. Easy fix for the future.
30 dollars for the thermostat
10 for the seals
28 for the antifreeze
45 labor
You were driving with the bad thermostat?
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Old 03-08-2013, 08:53 PM   #34
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Added coolant before I left and shop was like 4min away. I kept an eye on my temperate all the time.
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Old 03-08-2013, 09:47 PM   #35
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You were driving with the bad thermostat?
I had to drive 45 miles with a leaking thermostat housing....talk about some nerves!
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