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Old 08-03-2012, 07:53 PM   #1
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So, as the title says, I sent my Jeep to get a Leak Test, and a inspection of the cooling system. It failed, and it failed gloriously. So me saying my Engine was running Hot in a previous thread and you guys saying it was "fine". No it isnt.

Now, lets go down the list of what failed or needs replacement,
-Water Pump failed
-Radiator Hoses are worn down
-Rear Main Bearing Gasket leaks.

Price for parts 220$'s. Price for labor, 860$'s. Total 1250$'s. Estimated. This is from Pep Boys, who I dont believe I will be hiring for the job.


So, I am going to hope my mechanic friend is willing to help take apart my engine to replace a gasket with my help. I can afford the labor, but I would like having 860 dollars instead.

Meanwhile, while I am taking apart my engine, what can I improve, and what should I replace while I am in there. Things that generally get worn down in the long run anyways, and should be replaced so I don't have to dismantle my engine again.

Also, in case my friend says no. I live in Portsmouth, Virginia and if anyone knows a mechanic who will do it for less than the price listed. Would be nice.

Meanwhile, going to rant for a second-

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Old 08-04-2012, 01:59 AM   #2
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The problem in the other thread http://www.wranglerforum.com/f5/do-t...0f-175653.html is you said it runs hot then in the same sentence you were saying it runs at 210*. Even the title of the thread says 210* which is normal.

You can save $860 by doing the work yourself. The rear main is very common mine leaks like crazy. There's several write-ups showing exactly what you need to do step by step...do a search. The water pump and hoses are straight forward but i'm sure there's a write-up for the pump as well. Just letting you know it's still going to run at 210* when you're done.

BTW how did they diagnose the water pump?

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Old 08-04-2012, 04:26 AM   #3
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Why do you need to disassemble your engine? How is your water pump bad? How are your hoses worn down? Why do you think 210* is too hot?
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Old 08-04-2012, 08:38 AM   #4
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As far as 210 goes, that is normal. Personally i put a 180 thermostat in mine just because i like it to run a little cooler. As for Pep Boys failing your entire cooling system....how do you think they make money....by telling you what you need to replace because you dont know any better. Would be a good time to buy a Chilton or Haynes manual, and spend a weekend learning.
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Old 08-04-2012, 09:02 AM   #5
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How bout ranting off line. Nobody wants to read all those f$&@. An edit would be nice
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Old 08-04-2012, 09:03 AM   #6
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Quote:
Originally Posted by Mudweiser View Post
As far as 210 goes, that is normal. Personally i put a 180 thermostat in mine just because i like it to run a little cooler. As for Pep Boys failing your entire cooling system....how do you think they make money....by telling you what you need to replace because you dont know any better. Would be a good time to buy a Chilton or Haynes manual, and spend a weekend learning.
They failed it because it obviously is damaged. I've seen other 4.0 Engines, and they do not run this hot, and they are not prone to leaking fluid. I got it check to find out exactly what failed, and now I know. I just don't like the answer of the rear gadget.

Now, while I am looking around in my Engine, what do you guys recommend I replace or upgrade while I am in there?
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Old 08-04-2012, 09:14 AM   #7
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Quote:
Originally Posted by Daginni

They failed it because it obviously is damaged. I've seen other 4.0 Engines, and they do not run this hot, and they are not prone to leaking fluid.

Now, while I am looking around in my Engine, what do you guys recommend I replace or upgrade while I am in there?
210 is normal op temp, and there are several sensors that only operate when the engine reaches this normal temp, don't try to change it. Two ways you can tell if the water pump is bad: bearing out, it will make noise and the pulley will not run true, or coolant will run out of the weep hole, indicating the seal (and possibly the bearing) is bad.
Rear mains do go bad on these engines, just make sure all oil leaks above the main seal, like the valve cover, are fixed first. Rear mains are one of the most mis-diagnosed repairs by mechanics, even though most wouldn't consider Manny, Moe and Jack a mechanic even for a weed eater.
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Old 08-04-2012, 01:56 PM   #8
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Originally Posted by Daginni View Post
They failed it because it obviously is damaged. I've seen other 4.0 Engines, and they do not run this hot, and they are not prone to leaking fluid. I got it check to find out exactly what failed, and now I know. I just don't like the answer of the rear gadget.

Now, while I am looking around in my Engine, what do you guys recommend I replace or upgrade while I am in there?
What fluid are you leaking...just oil from the rear main? You never mentioned you were leaking coolant. JP wrote the signs of a bad pump so if you don't have those and you're not red lining the temp gauge the pump is fine. You're chasing a ghost that isn't there bro.

For your own piece of mind i'd go test drive several TJ's this weekend and note the running temp. Don't roll up in your jeep, take someone else's car or get a rental so the sales guy will think you're seriously looking at jeeps.
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Old 08-04-2012, 05:54 PM   #9
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Hey man, I thought I was leaking from my rear main, but it turned out all I needed to do was torgue down my valve cover. Give that a shot first. As far as the temp, 210 is normal. Pep Boys are a buncha liars, take it from me. I replaced shocks on my Jeep and then told them my ride felt loose... they came back and told me I needed shocks.
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Old 08-04-2012, 06:08 PM   #10
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Hey man, I thought I was leaking from my rear main, but it turned out all I needed to do was torgue down my valve cover. Give that a shot first. As far as the temp, 210 is normal. Pep Boys are a buncha liars, take it from me. I replaced shocks on my Jeep and then told them my ride felt loose... they came back and told me I needed shocks.
lol
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Old 08-04-2012, 06:35 PM   #11
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Quote:
Originally Posted by Daginni View Post
They failed it because it obviously is damaged. I've seen other 4.0 Engines, and they do not run this hot, and they are not prone to leaking fluid. I got it check to find out exactly what failed, and now I know. I just don't like the answer of the rear gadget.

Now, while I am looking around in my Engine, what do you guys recommend I replace or upgrade while I am in there?

Muffler bearings and some new blinker fluid.
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Old 08-15-2012, 02:20 AM   #12
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I had a dealership tell me my car needed freon and I did not even have A/C

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