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I have a 55 Chevy with new crate engine and a Desert cooler radiator which i had flushed out before instalation everything else is new with the cooling system the engine has a electric fan from a dodge viper which is a very high voc fan a 165 theromastatit will run 185 - 190 at idel but when you start driving it goes up to 215 -220 do you have any sugestions? thanks

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The next time you start your car wait until the temp gage starts to go up past the normal level and turn your heat on full blast. if the temp starts to go down and stayes there while driving than you need to get a thermaostat that opens well before the one you have. also check to make sure you have filled you raditor and overflow tank but please remember that you can only fill your over flow tank to a certain spot when the engine is cold(before you start it) and when it is hot (when it has been running).
If this does not fix the problem please let me know and i will assist you in another direction.

Posted on Aug 01, 2008


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My consern is that my 1999 chevy lumina has thick, black, oily residue all over the inside of radiator cap and appears to be down in the radiator also. what could this be and why would this be there

Does it have an engine oil cooler? There will be cooler lines going to the radiator. Smaller lines will be an automatic transmission cooler and larger would be engine oil. The internal coolers can be leaking inside the radiator. Check those fluid levels as well. If one or both are low that may be where its going.

Then it could be transmission fluid but I would hope you don't let it go until it gets black.

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Radiator is leaking, on the drivers side of car. 2002 Chevy Avalanche, 4 wheel drive trcuk. One owner, 106000 miles on it.

Removal & Installation To Remove:
To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is on or is still hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.
If the vehicle's coolant is low, drained out, or has repeatedly needed coolant or water added to the system, then the system should be completely flushed.
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    • Radiator bolts
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To Install:
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There is oil in the radiator

could becoming from ur oil cooler lines that go into rad,,,could have internal crack in rad,,,pull dip stick out & ck to see if motor oil is low or a grayish color,,if ok ck trans fluid to see if is low,,have to find out what kind of oil residua is in the over flow jug

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Why do i got trans fluid in my radiator it over heats and oily water comes out

The radiator has a trans cooler built in to it. The trans cooler is apparently bad and leaking trans fluid into the radiator coolant. You need a new radiator and a complete cooling system flush along with a trans flush. If you continue to operate the vehicle you take the chance of damaging the engine and transmission. Your looking at a minimum of $400 to replace the radiator and flushing both systems. But a transmission replacement can cost upwards of $3000 or more not to mention engine damage. Have this done asap.

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  • you need to remove the lower front skid plate, to acsess and remove one of the trans cooler lines that go into the bottom of radiator.
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  • there will be about a quarter cup of fluid that will leak out. No big deal just have a drain pan handy to catch the mess.
  • The external cooler hoses gets hooked up, one to the radiator and the other to the line that was unhooked from the radiator.
  • The cooler gets mounted up against the condenser, so you may have to remove the grill so you can slip the cooler behind it in a convenient location.
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I hope this helps,
If it does, dont forget to leave us your feedback.

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2003 Dodge Neon SE the car acted like it was in neutal

As detrimental as coolant is in the engine oil, it has a much worse affect in the transmission fluid as its a thinner fluid and does not have the additive package that a motor oil does.

Here's how I would approach this:

To replace the cooler (its probably in the radiator) means they will likely have to replace the radiator and then the rebuild of the transmission is going to be up there as well. So all this is going to be considerably expensive.

You could go that route if you wish, but you could also take a chance and have an after market transmission cooler installed (by-pass the one in the radiator completely so you dont have the risk of coolant in your transmission again) and then have a thorough transmission flush done with a new filter installed.

Now, you are likely looking at a few hundred dollars minimum if you have the dealership do this but Im thinking that the reason the car acted like it was in neutral was due to the lack of transmission fluid because of the cooler line busting.

If you can do this work yourself you could probably do it all for less than $200 and if everything works out and the transmission is not damaged and works properly, you've saved yourself a good chunk of change. If it doesnt work and continues to have problems, then you can decide if the repair bill will be worth it to rebuild the transmission.

The key think here will be doing a very thorough transmission flush to get any traces of coolant out of the system and a new filter. Hope this helps.

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