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coolant loss from 99 oldsmobile alero with 3.4L
Check your Throttle body gasket. I had an intermittant leak on my 93
Lesabre, same engine. On Thu, 18 Nov 2004 10:32:46 GMT, Anthony > wrote: (Mike) wrote in news:6cad5565.0411171629.74faeb38 : > >> Coolant leaks from the coolant tank thru the overflow tube after the >> car has warmed up. I need to add coolant every day. The car heats >> well, and does not overheat as long as i can keep coolant in it. I >> just changed the upper and lower intake manifold gaskets, and the >> thermostat, the lower was in poor shape. I have checked the >> compression, 5 were 170-175psi, 1 was 155psi. Per the service book i >> have those compressions are within spec. I know i am losing the >> coolant from the overflow tube because i put the overflow tube in a >> bottle and ran the car under normal conditions. After driving some 20 >> miles the bottle was full of coolant. This is where its going, I just >> don't know what is causing it. Help.... Thanks.... >> > > >1 st guess, given the engine: Head gasket >Things I would check though: Replace the radiator cap, a bad seal will >let coolant leak by into the overflow. >Check the oil for a milky residue, just to make sure no coolant is >getting into the oil. >If the head gasket is leaking into a coolant passage, you will be getting >air in the radiator, from a cold start, remove the radiator cap and watch >for air bubbles as the engine warms up. |
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#2
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For the rcord the Lesabre had a 3.8, much different engine than the 3.4,
although the potentialfor the tb gasket leaks is about the same. "Finite Guy" > wrote in message ... > Check your Throttle body gasket. I had an intermittant leak on my 93 > Lesabre, same engine. > > > On Thu, 18 Nov 2004 10:32:46 GMT, Anthony > > wrote: > (Mike) wrote in news:6cad5565.0411171629.74faeb38 : >> >>> Coolant leaks from the coolant tank thru the overflow tube after the >>> car has warmed up. I need to add coolant every day. The car heats >>> well, and does not overheat as long as i can keep coolant in it. I >>> just changed the upper and lower intake manifold gaskets, and the >>> thermostat, the lower was in poor shape. I have checked the >>> compression, 5 were 170-175psi, 1 was 155psi. Per the service book i >>> have those compressions are within spec. I know i am losing the >>> coolant from the overflow tube because i put the overflow tube in a >>> bottle and ran the car under normal conditions. After driving some 20 >>> miles the bottle was full of coolant. This is where its going, I just >>> don't know what is causing it. Help.... Thanks.... >>> >> >> >>1 st guess, given the engine: Head gasket >>Things I would check though: Replace the radiator cap, a bad seal will >>let coolant leak by into the overflow. >>Check the oil for a milky residue, just to make sure no coolant is >>getting into the oil. >>If the head gasket is leaking into a coolant passage, you will be getting >>air in the radiator, from a cold start, remove the radiator cap and watch >>for air bubbles as the engine warms up. > > -----------== Posted via Newsfeed.Com - Uncensored Usenet News ==---------- http://www.newsfeed.com The #1 Newsgroup Service in the World! -----= Over 100,000 Newsgroups - Unlimited Fast Downloads - 19 Servers =----- |
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Your right! It is the 3.8; but that coolant leak was very strange. It
would leak then it would stop. Very Wierd. This is a great newsgroup. All of the knowledgeable people here have given great (and accurate) advice. Robert On Mon, 20 Dec 2004 19:39:33 -0500, "Shep" > wrote: >For the rcord the Lesabre had a 3.8, much different engine than the 3.4, >although the potentialfor the tb gasket leaks is about the same. >"Finite Guy" > wrote in message .. . >> Check your Throttle body gasket. I had an intermittant leak on my 93 >> Lesabre, same engine. >> >> >> On Thu, 18 Nov 2004 10:32:46 GMT, Anthony > >> wrote: >> (Mike) wrote in news:6cad5565.0411171629.74faeb38 : >>> >>>> Coolant leaks from the coolant tank thru the overflow tube after the >>>> car has warmed up. I need to add coolant every day. The car heats >>>> well, and does not overheat as long as i can keep coolant in it. I >>>> just changed the upper and lower intake manifold gaskets, and the >>>> thermostat, the lower was in poor shape. I have checked the >>>> compression, 5 were 170-175psi, 1 was 155psi. Per the service book i >>>> have those compressions are within spec. I know i am losing the >>>> coolant from the overflow tube because i put the overflow tube in a >>>> bottle and ran the car under normal conditions. After driving some 20 >>>> miles the bottle was full of coolant. This is where its going, I just >>>> don't know what is causing it. Help.... Thanks.... >>>> >>> >>> >>>1 st guess, given the engine: Head gasket >>>Things I would check though: Replace the radiator cap, a bad seal will >>>let coolant leak by into the overflow. >>>Check the oil for a milky residue, just to make sure no coolant is >>>getting into the oil. >>>If the head gasket is leaking into a coolant passage, you will be getting >>>air in the radiator, from a cold start, remove the radiator cap and watch >>>for air bubbles as the engine warms up. >> >> > > > > >-----------== Posted via Newsfeed.Com - Uncensored Usenet News ==---------- > http://www.newsfeed.com The #1 Newsgroup Service in the World! >-----= Over 100,000 Newsgroups - Unlimited Fast Downloads - 19 Servers =----- |
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