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Discussion Starter #1
Have spent the last 9 hours putting in a new radiator and water pump. Did everything by the diy. Turned car on and it seemed normal at first then it started to overheat. Please help no money to take it to mechanic. It was leaking tranny oil from the tran cooler line when i was putting the radiator. I followed both diys for both installations. Put new anti freeze. My car wasnt overheating this fast before this.
 

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Discussion Starter #2
Let me add that my cars heater is not working. And the lower trans cooler line on the radiator might be leaking some oil. Jesus what did I do.
 

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Discussion Starter #3
I was also having trouble putting the pcm computer back in its place, my interior lights where acting kind of funny. Also the diy for the radiator stated that I needed to remove the coolant sensor nowhere on my radiator did I see a coolant sensor. I have a 2005 impala 3.4
 

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Discussion Starter #5
Update
I bled the cooling system and now the temperature fluctuates and the half way mark. It moves constantly up and down. The heater works but not hot as before. Trans cooler lines are still leaking lots of oil. Any advice.
 

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You probably didn't get all the air out. The leaking tranny lines are either because the fittings aren't tight in the radiator, or the o-rings are shot. Coolant sensor is by the battery. Why did you take the PCM out?
 

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Discussion Starter #7
Yeah I think It was the there, fixed that.The seems to be fluctuating though. It constantly moves up and down from the half way mark, not to much. To repair the tranny cooler lines do I need to flush the radiator or is it ok as long as its cool down there. As far as the coolant sensor I believe my model year does not have one near the battery. I didnt complety remove the pcm I just couldnt get it back in place. The orings on the trans cooler lines what are they called to purchase some.
 

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You don't need to flush the radiator to do anything with the cooler lines, they aren't connected inside. I'm ambitious confused about the sensor, unless there was a change in the later model years, there should be one there. And I'm still not sure why you moved the PCM, I've never had to.
 

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Discussion Starter #9
I was confused at first too, my model year does not have one. All it has is a coolant sensor that is near the air filter on the engine. Ill take some pictures so you can see what it looks like. How do I post them on here.
 

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Discussion Starter #12
Ok as for the trans cooler lines both are leaking from where they connect to tranny. Any idea how hard it is to swap. Personally from someone whos done it before. When you remove the lines will alot of tranny fluid come out. Do I need to flush tranny first.
 

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They are very easy, and not much fluid comes out, but stick a drainpan under there anyway. Pull the little plastic collar back from the fitting, you will see three slots in the ring around the back of the fitting, there is a little spring clip that fits in them. Use a small pick tool or small flathead screwdriver to remove it, don't bend it or lose it. Once it's out, pull the line out of the fitting. Once the line is out, just unscrew the fitting, the o-ring is inside and seals the line to the fitting, that's the part that's leaking. Reverse process to install, check fluid level after.
 

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Discussion Starter #15
Tried removing the cooler lines, seems like alot of oil was pouring out so i reassembled it. What if I added black rtv silicone to the back of the fitting where its leaking, is that ok to do to stop the leaking.
 

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Found out from where? I have replaced several lines and fittings and have not needed to do any such thing, nor can I see any reason to. The idea itself is preposterous.
 

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Discussion Starter #18
The lines were leaking heavily for me, might be different someway. Any idea if I can use black rtv silicon to seal leak from outside.
 

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Dejavu
 
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