Coolant dissapearing????

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Coolant dissapearing????

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Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Silverado >> Coolant dissapearing????

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Coolant dissapearing???? - 7/23/2007 8:40:50 AM

2001 2500

Posts: 3
Joined: 6/5/2007
Status: offline

As you can tell by my name I have a 2001 2500HD with the 6.0L. My question is why do I keep losing coolant. I lose about a 1/2 inch in the resevoir every 2-3 weeks. There is not obvios signs of smoke so can't tell where the leak may be coming from. I have had it to the dealer and they cannot figure it out either.

Any suggestions????

I haul a 25ft. 5th wheel and am going to be taking a long road trip in Oct. I need to get this figured out.

Thanks,
Chris

< Message edited by 2001 2500 -- 7/23/2007 8:41:54 AM >

Post #: 1

RE: Coolant dissapearing???? - 7/23/2007 9:50:12 AM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
Status: offline

There were a few bad cylinder head castings on the 5.3L and 4.8L engines back then but none on the 6.0L that I am aware of.

The most likely cause of coolant consumption is a bad head gasket.

(in reply to 2001 2500)

Post #: 2

RE: Coolant dissapearing???? - 7/23/2007 11:47:46 AM

Fireguy8

Posts: 60
Joined: 4/26/2007
Status: offline

Also you can check the intake gasket at the rear of the engine at one of the rearmost coolant ports,they sometimes only leak under pressure.

(in reply to ZX1100F1)

Post #: 3

RE: Coolant dissapearing???? - 7/23/2007 2:06:48 PM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
Status: offline

There are no coolant passages on the 6.0L Vortec Powerplant intake manifold.

(in reply to Fireguy8)

Post #: 4

RE: Coolant dissapearing???? - 7/23/2007 8:32:21 PM

Waboom!!

Posts: 79
Joined: 1/13/2007
Status: offline

I had a slight water pump leak on my 03 that was never visible or detectable that caused me to lose a similer amount of coolant.

_____________________________

03' Silverado Z71
'03 Acura TL 3.2 Vtec
'00 Honda Accord 2.3 5 spd Vtec
+ couple of cars to crash in demo derbys

(in reply to ZX1100F1)

Post #: 5

RE: Coolant dissapearing???? - 7/23/2007 9:13:58 PM

cj23

Posts: 19
Joined: 11/29/2006
Status: offline

I have a 01 5.3 water pump was change but still add coolant every month or so no visible leak, no smoke and plugs look good. So where is it going?

(in reply to Waboom!!)

Post #: 6

RE: Coolant dissapearing???? - 7/24/2007 6:09:13 AM

2001 2500

Posts: 3
Joined: 6/5/2007
Status: offline

That is the wierd thing for me too. No smoke, no leak on the ground, plugs look good. Can't seem to find anything.

Help?????