BIGBrandon2785 Posted July 23, 2013 Report Share Posted July 23, 2013 So I've been having overheating issues on and off for a little less then a year now,well today I'm sitting in my car talkin to a friend and he says coolant is leaking,I back up and in 5 or so minutes a pretty big pool of coolant has leaked out from under the passenger side. I then get it home with it only getting barely hot and it's hissing like something is not air tight.I can't find a busted hose though??Could it be a water pump or cracked radiator? I'm at a loss here,Ive been dealing with the overheating problem for a while,every time I think I've fixed it,it pops back up.I don't think it's the head gasket because the oil is clean,it don't smoke and it runs very smooth. Any help is appreciated,Thanks Link to comment Share on other sites More sharing options...
rockfangd Posted July 23, 2013 Report Share Posted July 23, 2013 Have you checked the crossover pipes at the rear of the engine? sounds like one of them. They start on the driver side, go around the rear of the engine and to the passenger side at the reservoir. GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
BIGBrandon2785 Posted July 23, 2013 Author Report Share Posted July 23, 2013 Have you checked the crossover pipes at the rear of the engine? sounds like one of them. They start on the driver side, go around the rear of the engine and to the passenger side at the reservoir.No I haven't but on my 1998 the return reservoir is on the driver side.1998 is the 1st year of the late 90's and early 2000's style. Link to comment Share on other sites More sharing options...
KHE Posted July 23, 2013 Report Share Posted July 23, 2013 So I've been having overheating issues on and off for a little less then a year now,well today I'm sitting in my car talkin to a friend and he says coolant is leaking,I back up and in 5 or so minutes a pretty big pool of coolant has leaked out from under the passenger side. I then get it home with it only getting barely hot and it's hissing like something is not air tight.I can't find a busted hose though??Could it be a water pump or cracked radiator? I'm at a loss here,Ive been dealing with the overheating problem for a while,every time I think I've fixed it,it pops back up.I don't think it's the head gasket because the oil is clean,it don't smoke and it runs very smooth. Any help is appreciated,Thanks It is not the water pump... the only time a water pump should be replaced is if it is making noise or if coolant is leaking out of the weep hole. If the radiator tank is cracked, you would see coolant leaking from the crack. The inlet side is always the side that goes bad and that is on the driver's side. The coolant is most likely coming out of the surge tank overflow tube. What does the temperature gage indicate when the coolant is leaking? Have you verified the purge line is flowing? Test the surge tank cap with a pressure tester to make sure it holds the rated pressure. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BIGBrandon2785 Posted July 23, 2013 Author Report Share Posted July 23, 2013 So I've been having overheating issues on and off for a little less then a year now,well today I'm sitting in my car talkin to a friend and he says coolant is leaking,I back up and in 5 or so minutes a pretty big pool of coolant has leaked out from under the passenger side. I then get it home with it only getting barely hot and it's hissing like something is not air tight.I can't find a busted hose though??Could it be a water pump or cracked radiator? I'm at a loss here,Ive been dealing with the overheating problem for a while,every time I think I've fixed it,it pops back up.I don't think it's the head gasket because the oil is clean,it don't smoke and it runs very smooth. Any help is appreciated,Thanks It is not the water pump... the only time a water pump should be replaced is if it is making noise or if coolant is leaking out of the weep hole. If the radiator tank is cracked, you would see coolant leaking from the crack. The inlet side is always the side that goes bad and that is on the driver's side.The coolant is most likely coming out of the surge tank overflow tube. What does the temperature gage indicate when the coolant is leaking? Have you verified the purge line is flowing? Test the surge tank cap with a pressure tester to make sure it holds the rated pressure. The temp was at barley over halfway and.I put a brand new cap on it a few months ago.Also my surge tank is on the driver side though. Link to comment Share on other sites More sharing options...
Logan Posted July 23, 2013 Report Share Posted July 23, 2013 Any chance it's drippings from the AC system? We get those postings about this time every year. Logan Diagnostic LLC www.airbagcrash.com www.logandieselusa.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
BIGBrandon2785 Posted July 23, 2013 Author Report Share Posted July 23, 2013 Any chance it's drippings from the AC system? We get those postings about this time every year. I don't think so,I don't run my ac because my driver side actuator is messed up. Link to comment Share on other sites More sharing options...
airmike Posted July 24, 2013 Report Share Posted July 24, 2013 If that 98 is like my 99 there are no cross over pipes, to the passenger side. In fact the only thing on the passenger side with coolant is the upper radiator hose snout, the alternator coolant lines and the tank. BUT it can leak on the drivers side and run across the plastic lower cover and drip/run out on the ground on the passenger side. Ask me how I know. lol Link to comment Share on other sites More sharing options...
BIGBrandon2785 Posted July 24, 2013 Author Report Share Posted July 24, 2013 If that 98 is like my 99 there are no cross over pipes, to the passenger side. In fact the only thing on the passenger side with coolant is the upper radiator hose snout, the alternator coolant lines and the tank. BUT it can leak on the drivers side and run across the plastic lower cover and drip/run out on the ground on the passenger side. Ask me how I know. lol Lol,I wish that was all it is..........I took a good look at it today,looks like a collapsed radiator hose,cracked radiator and failed water pump.So pretty much it's gonna be a whole new cooling system.Im gonna start calling around for prices tomorrow probably gonna run a grand I'm thinking.......Looks like it might out of commission for a while. Link to comment Share on other sites More sharing options...
rockfangd Posted July 24, 2013 Report Share Posted July 24, 2013 Oh ok I do apologize. They changed the Seville a ton in 98. The deville and eldo stayed the same til 99. If thats the case I dont even know about the rear pipes GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
BIGBrandon2785 Posted July 24, 2013 Author Report Share Posted July 24, 2013 Oh ok I do apologize. They changed the Seville a ton in 98. The deville and eldo stayed the same til 99. If thats the case I dont even know about the rear pipesYeah I believe,the Seville was changed in '98-'02.All I know is I love my STS,it's the nicest car I've ever owned.Maybe besides a '89 Caprice I had that got stolen. Link to comment Share on other sites More sharing options...
KHE Posted July 24, 2013 Report Share Posted July 24, 2013 If that 98 is like my 99 there are no cross over pipes, to the passenger side. In fact the only thing on the passenger side with coolant is the upper radiator hose snout, the alternator coolant lines and the tank. BUT it can leak on the drivers side and run across the plastic lower cover and drip/run out on the ground on the passenger side. Ask me how I know. lol Lol,I wish that was all it is..........I took a good look at it today,looks like a collapsed radiator hose,cracked radiator and failed water pump.So pretty much it's gonna be a whole new cooling system.Im gonna start calling around for prices tomorrow probably gonna run a grand I'm thinking.......Looks like it might out of commission for a while. By "cracked radiator" do you mean the tank is cracked? If so, a good radiator shop can replace just the tank for less than $100.00 if you bring them the radiator. Is the water pump leaking coolant from the weep hole? That is the only failure mode in the water pump. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
joeb Posted July 24, 2013 Report Share Posted July 24, 2013 Where is the inlet/outlet for heater core? Is it on pass side firewall? Link to comment Share on other sites More sharing options...
airmike Posted July 25, 2013 Report Share Posted July 25, 2013 Nope it is in the center. Right next to the power brake booster. Ever so slightly to the drivers side of center even. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.