coolant leak. need help. - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
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#1 Old 12-05-2009, 10:36 AM
bgreen96
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coolant leak. need help.

ok. i'm confused on this. the truck looses coolant not bad but it does. i fill it up once a week. when i parked it on a small incline the other day i saw coolant on the ground. i had 16.9oz water bottles in my truck. so i used that to fill it up. it only took 2 of the bottles to fill it up. when it runs i dont see coolant leaking but that one time i parked it and turned it off for about 10 mins. i saw coolant dripping and i pretty big spot on the ground. it never overheated. what could this be? have any of you experienced this?
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#2 Old 12-05-2009, 12:25 PM
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Have you checked all the coolant hoses or replaced them all? They may have a small hairline crack in them that leaks.

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#3 Old 12-05-2009, 02:21 PM
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get underneath the truck and see if you can follow the leak, the leak will get you in the general area. When you figure the general area it will be easier for us to give you more help.

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#4 Old 12-05-2009, 02:58 PM
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check the weep hole at the water pump

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#5 Old 12-05-2009, 05:43 PM
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yea i was thinking the water pump, but i havent had a chance to get under it yet. it looks like its running down and dripping in the middle of the front axle. its 4x4.
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#6 Old 12-05-2009, 11:49 PM
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also other possible leaks up front .. thermostat outlet, bypass hose (near outlet), and timing cover all of those can give a small leak like you describe

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#7 Old 12-06-2009, 11:05 AM
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the timing cover on these truck will leak coolant? new to dodge. always had gm.
i got under it today, water pump looks dry. it maybe the timing cover. it looks like the timing cover on these truck cover the whole front block? im seeing a little wetness behind the alt. area. on the side of the block or that maybe the timing cover. from what i can see it doesnt look like the therm. housing isnt leaking. i changed the therm. a few months ago.
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#8 Old 12-06-2009, 12:41 PM
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Originally Posted by bgreen96 View Post
the timing cover on these truck will leak coolant? new to dodge. always had gm.
i got under it today, water pump looks dry. it maybe the timing cover. it looks like the timing cover on these truck cover the whole front block? im seeing a little wetness behind the alt. area. on the side of the block or that maybe the timing cover. from what i can see it doesnt look like the therm. housing isnt leaking. i changed the therm. a few months ago.

coolant actually flows through the timing cover and yes the timing cover covers the entire front block behind water pump.

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new transfer case, brakes, shocks, radiator, water pump(twice cause of faulty parts), front balls joints, trak bar, front u-joints, tires, heater core.


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#9 Old 12-06-2009, 01:10 PM
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Yep its your waterpump, not to bad of a job once you get that Fan-clutch pully off. (get a big cresent and whack it hard to the left with a small sledge) Also while you have it down replace T/STAT & crossover hose,

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#10 Old 12-06-2009, 01:43 PM
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the water pump looks dry. its behind the water pump
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#11 Old 12-06-2009, 01:58 PM
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if it is behind the water pump then it is either water pump gasket or if it is farther back then it is probably your timing cover gasket.

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#12 Old 12-06-2009, 11:25 PM
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Dont know how you can see behind the waterpump but when it leaks thru the shaft seal weep hole thats where it will come from.

2000 4x4 SB
2in lift with 33s, Goodyear Duratracs.
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K&N air, flowmasters out.
Hypertech- 93 octane.
Rough Country shocks.
Plus some HiPO ign mods. Hayden Tranny cooler.
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#13 Old 12-06-2009, 11:50 PM
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All you have to do is look from a side angle. not that hard

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new transfer case, brakes, shocks, radiator, water pump(twice cause of faulty parts), front balls joints, trak bar, front u-joints, tires, heater core.


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#14 Old 12-07-2009, 11:46 PM
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Has that motor got a block heater? That's worth checking if it has one. Had to change the one in my '85 gmc last year because it was leaking steady.

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#15 Old 04-05-2010, 09:53 AM
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What was the outcome on your coolant leak problem? My son has a '98 Durango with the 5.2L V8 that sounds like your problem. Can coolant actually get into the timing chain cover area? I've never had a Dodge and that doesn't seem normal. One of the posts dealing with your issues seemed to imply that "coolant flows through" the timing chain area. Does that mean that the timing chain runs in the coolant? If not, where is the coolant leaking from? Will something behind the timing chain cover have to be replaced? Is there a freeze plug there?

Thanks for your help.
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#16 Old 04-05-2010, 10:11 AM
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Originally Posted by FrugalOne View Post
What was the outcome on your coolant leak problem? My son has a '98 Durango with the 5.2L V8 that sounds like your problem. Can coolant actually get into the timing chain cover area? I've never had a Dodge and that doesn't seem normal. One of the posts dealing with your issues seemed to imply that "coolant flows through" the timing chain area. Does that mean that the timing chain runs in the coolant? If not, where is the coolant leaking from? Will something behind the timing chain cover have to be replaced? Is there a freeze plug there?

Thanks for your help.
yes, coolant unfortunately does flow through the timing cover and around the timing chain and all. Mine is currently leaking around the timing cover.

Justin
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new transfer case, brakes, shocks, radiator, water pump(twice cause of faulty parts), front balls joints, trak bar, front u-joints, tires, heater core.


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#17 Old 04-05-2010, 10:26 AM
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If you're getting coolant inside your timing cover you have problems. The only thing thats wet in there is engine oil. There is a couple waterpump and timing cover bolts that do go into the water passage that may be leaking. Take the truck and have the coolant system pressurized, look for yor leak. You said you replaced the t-stat, I'd look that area over real good. Good luck
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#18 Old 04-05-2010, 12:01 PM
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If you're getting coolant inside your timing cover you have problems. The only thing thats wet in there is engine oil. There is a couple waterpump and timing cover bolts that do go into the water passage that may be leaking. Take the truck and have the coolant system pressurized, look for yor leak. You said you replaced the t-stat, I'd look that area over real good. Good luck

Not sure what engine you are looking at, but the 360/318's all have coolant that runs through the timing cover..not oil. That's the way they were designed.

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new transfer case, brakes, shocks, radiator, water pump(twice cause of faulty parts), front balls joints, trak bar, front u-joints, tires, heater core.


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#19 Old 04-05-2010, 12:03 PM
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maybe this will help what i am talking about. take a look at the pics. http://www.pavementsucks.com/tech-article-37.html

Justin
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new transfer case, brakes, shocks, radiator, water pump(twice cause of faulty parts), front balls joints, trak bar, front u-joints, tires, heater core.


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#20 Old 04-05-2010, 12:21 PM
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This inquery is a tag on to the origianl post of several months ago. We have not replaced anything on this truck yet ('98 Durango, 5.2L/318 V8). My son is military, in Rhode Island for a few months and has the problem. They did pressure test the truck at the 3rd shop he went to while the engine was hot and coolant immediately started spraying from the timing cover edge/gasket area. My question now is whether the timing cover gasket is all that will need to be replaced or is there something else behind the cover (freeze plug, etc) that may be causing this and will need to be replaced as well?

Thanks for your help.
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