LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

leaking coolant and overheating when idleing.

Old Aug 16, 2012 | 08:30 AM
  #1  
Purplebeastz28's Avatar
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From: Porter, Texas
leaking coolant and overheating when idleing.

for the past week my 95 z28 has been leaking coolant, i go outside and theres a huge puddle i check and theres barely any coolant left. i refill it and it overheats while idleing or sitting in traffic. when im driving normal it is perfectly fine.. another problem is you can smell gas REALLY bad, and the gas gage literally will go from full to half a tank to empty within minutes..
i have no idea if its leaking out or whats going on.

anyone else have this problem or have any suggestions or answers pleaseee let me know. this is very frustrating..

Last edited by Purplebeastz28; Aug 16, 2012 at 08:39 AM.
Old Aug 16, 2012 | 09:00 AM
  #2  
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Re: leaking coolant and overheating when idleing.

Find the source of the leak and try to fix. You have a puddle to help, so where is it leaking under the car? If you are really loosing that much fuel, then there should be a puddle also. Has anything been done recently to the car that may have caused either issue?

Last edited by mrmint69; Aug 16, 2012 at 09:03 AM. Reason: Miss spell
Old Aug 16, 2012 | 09:09 AM
  #3  
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Re: leaking coolant and overheating when idleing.

Jack it up and lay under it with it running and see if you can see where its dripping from. There is a small hole on the bottom of the water pump that leaks when its bad, (mine did)
Old Aug 16, 2012 | 02:00 PM
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Re: leaking coolant and overheating when idleing.

Originally Posted by Chet1185
Jack it up and lay under it with it running and see if you can see where its dripping from. There is a small hole on the bottom of the water pump that leaks when its bad, (mine did)
Wouldn't it be better to just pressurize the system and look for the leak? The coolant will be cool making the risk of burns that much less.
Old Aug 16, 2012 | 05:11 PM
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Re: leaking coolant and overheating when idleing.

hey guys i ended up taking her to the shop by the dealer i bought her from.. well she ran fine just leaked coolant all the way there. as soon as i parked the temp went from 180 to 250 so i shut her off right then. the dumb mechanic saw the coolant literally start puking out from under the car so he popped the hood and got in started it backed it up and as soon as he put it in drive and gave it some gas all saw was coolant and fluids gush and start spewing from under the hood and start pouring from under the car in 3 different places.. he lifted the hood coolant was everywhere ... radiator hose had blew, heater hose blew and a few other things.. so now they are replacing all the hoses, radiator, heatercore and def. a coolant flush.. and try to figure out why its overheating and why its building so much pressure to blow hoses. as for the gas. it had a bad gas cap they said. which still makes no sense to me but yea.

typical chevy.. i mean she ran perfect until that damn heater hose blew the first time. after that it was just a huge chain reaction.
guess im driving the T/A until i get her back...
Old Aug 16, 2012 | 07:54 PM
  #6  
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Re: leaking coolant and overheating when idleing.

How much did they charge for the repairs?
Old Aug 17, 2012 | 09:11 PM
  #7  
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Smile Re: leaking coolant and overheating when idleing.

Originally Posted by Purplebeastz28

typical chevy.. i mean she ran perfect until that damn heater hose blew the first time.....
guess im driving the T/A until i get her back...
Everything runs perfectly right up until it doesn't......


Seriously, these cooling systems aren't that tough to diagnose. If there is coolant everywhere, start with the hoses, then look for bad caps or a cracked recovery tank. If it still overheats after you get the leaks fixed look to a thermostat, a clogged radiator core or a bad waterpump....
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