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#3
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Hey Gord, It sound like a gasket leak, if you are indeed sensing issues in your fluids. If one truly is failing, you should be able to notice moisture, even teardrops around when the head meets the engine and (if you can see it) where the manifold is attached. I've replaced a few heads and gaskets in my time and I've found it's best to just replace both gaskets at the same time, no matter what. It doesn't cost much more time to do both, and it means less to worry about it the future. If you are not doing it yourself, I'm not sure how much more it would cost to do more than what is absolutely needed. I would hope that a good mechanic shop would recommend doing both (even all your gaskets in the engine) at once. Gaskets come in sets that generally contain every gasket for your engine. For a malibu, I'd wager they run around $100-170US for the V6 (maybe less if you have a 4 cylinder. I've never paid for such a repair, but my mother had a head, plus some other work, done on her Chevy Venture and it was something like $900US. I know how you feel, so good luck. Does the engine get relatively hot while driving? This is usually the first indicator of a bad gasket. You could try some radiator stop-leak ($8 at the part store), but I would be hesitant. It's been known to help some engines, and exacerbate others, causing more damage. I wouldn't recommend it, but if you find the repairs too costly for the value of the car, think about giving it a shot. |
#4
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Phildo <phil4881 (AT) gmail (DOT) com> wrote in news:0ada2600-aa71-4aad-9213- 0f2694fe1046 (AT) k39g2000hsf (DOT) googlegroups.com: Hey Gord, It sound like a gasket leak, if you are indeed sensing issues in your fluids. If one truly is failing, you should be able to notice moisture, even teardrops around when the head meets the engine and (if you can see it) where the manifold is attached. I've replaced a few heads and gaskets in my time and I've found it's best to just replace both gaskets at the same time, no matter what. It doesn't cost much more time to do both, and it means less to worry about it the future. If you are not doing it yourself, I'm not sure how much more it would cost to do more than what is absolutely needed. I would hope that a good mechanic shop would recommend doing both (even all your gaskets in the engine) at once. Gaskets come in sets that generally contain every gasket for your engine. For a malibu, I'd wager they run around $100-170US for the V6 (maybe less if you have a 4 cylinder. I've never paid for such a repair, but my mother had a head, plus some other work, done on her Chevy Venture and it was something like $900US. I know how you feel, so good luck. Does the engine get relatively hot while driving? This is usually the first indicator of a bad gasket. You could try some radiator stop-leak ($8 at the part store), but I would be hesitant. It's been known to help some engines, and exacerbate others, causing more damage. I wouldn't recommend it, but if you find the repairs too costly for the value of the car, think about giving it a shot. After getting it into the shop on Tuesday , they ran the dye through the car ,, pressure tested the system for a couple of hours with no drop in pressure. After explaining that i had to top up the holding tank twice since just before Xmas , with the warning light coming on , not noticing any antifreeze on the drive or around the engine , none on the passenger floor , not blowing white smoke , no sweet smell coming from the car at all ,,they were stumped , i told them that the water pump had been replaced within the last 6 months , they decided to go back to that and have a look to make sure that it wasn't a faulty pump ,, they pressure tested it for another 3 hours with the pressure holding the whole time. The only thing that they could find is the rad cap was looking kind of ratty so they replaced that and topped up the fluid and told me to keep an eye on it over the next week or so and if it starts to look low again to bring it in. I've been going to these guys for some time and trust them with all my cars including the company vehicle , they also stated that they've experienced many of these GM engines with the intake problems and didn't notice anything that pointed to my vehicle having that dreaded problem. So right now that's where i sit ,, oh and the service engine light problem was a broken vacuum line to the pvc. Hopefully the cap was the culprit , that's a lot easier to stomach price wise. Gord |
#5
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As a note your statement about the oil looking thinner. Water won't mix with oil and make it thinner. It will make a sludge and cause corrosion but not thin the oil. You will also see a sludge around the dip stick and around the oil cap. Hopefully the mechanic is on the right track as a leaking cap can cause your problem |
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"LouisG" <imnot (AT) home (DOT) com> wrote in message news:Xns9A2FB1F562CCC11241959 (AT) 140 (DOT) 99.99.130... Phildo <phil4881 (AT) gmail (DOT) com> wrote in news:0ada2600-aa71-4aad-9213- 0f2694fe1046 (AT) k39g2000hsf (DOT) googlegroups.com: Hey Gord, It sound like a gasket leak, if you are indeed sensing issues in your fluids. If one truly is failing, you should be able to notice moisture, even teardrops around when the head meets the engine and (if you can see it) where the manifold is attached. I've replaced a few heads and gaskets in my time and I've found it's best to just replace both gaskets at the same time, no matter what. It doesn't cost much more time to do both, and it means less to worry about it the future. If you are not doing it yourself, I'm not sure how much more it would cost to do more than what is absolutely needed. I would hope that a good mechanic shop would recommend doing both (even all your gaskets in the engine) at once. Gaskets come in sets that generally contain every gasket for your engine. For a malibu, I'd wager they run around $100-170US for the V6 (maybe less if you have a 4 cylinder. I've never paid for such a repair, but my mother had a head, plus some other work, done on her Chevy Venture and it was something like $900US. I know how you feel, so good luck. Does the engine get relatively hot while driving? This is usually the first indicator of a bad gasket. You could try some radiator stop-leak ($8 at the part store), but I would be hesitant. It's been known to help some engines, and exacerbate others, causing more damage. I wouldn't recommend it, but if you find the repairs too costly for the value of the car, think about giving it a shot. After getting it into the shop on Tuesday , they ran the dye through the car ,, pressure tested the system for a couple of hours with no drop in pressure. After explaining that i had to top up the holding tank twice since just before Xmas , with the warning light coming on , not noticing any antifreeze on the drive or around the engine , none on the passenger floor , not blowing white smoke , no sweet smell coming from the car at all ,,they were stumped , i told them that the water pump had been replaced within the last 6 months , they decided to go back to that and have a look to make sure that it wasn't a faulty pump ,, they pressure tested it for another 3 hours with the pressure holding the whole time. The only thing that they could find is the rad cap was looking kind of ratty so they replaced that and topped up the fluid and told me to keep an eye on it over the next week or so and if it starts to look low again to bring it in. I've been going to these guys for some time and trust them with all my cars including the company vehicle , they also stated that they've experienced many of these GM engines with the intake problems and didn't notice anything that pointed to my vehicle having that dreaded problem. So right now that's where i sit ,, oh and the service engine light problem was a broken vacuum line to the pvc. Hopefully the cap was the culprit , that's a lot easier to stomach price wise. Gord |
#6
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As a note your statement about the oil looking thinner. Water won't mix with oil and make it thinner. It will make a sludge and cause corrosion but not thin the oil. You will also see a sludge around the dip stick and around the oil cap. Hopefully the mechanic is on the right track as a leaking cap can cause your problem "LouisG" <imnot (AT) home (DOT) com> wrote in message news:Xns9A2FB1F562CCC11241959 (AT) 140 (DOT) 99.99.130... Phildo <phil4881 (AT) gmail (DOT) com> wrote in news:0ada2600-aa71-4aad-9213- 0f2694fe1046 (AT) k39g2000hsf (DOT) googlegroups.com: Hey Gord, It sound like a gasket leak, if you are indeed sensing issues in your fluids. If one truly is failing, you should be able to notice moisture, even teardrops around when the head meets the engine and (if you can see it) where the manifold is attached. I've replaced a few heads and gaskets in my time and I've found it's best to just replace both gaskets at the same time, no matter what. It doesn't cost much more time to do both, and it means less to worry about it the future. If you are not doing it yourself, I'm not sure how much more it would cost to do more than what is absolutely needed. I would hope that a good mechanic shop would recommend doing both (even all your gaskets in the engine) at once. Gaskets come in sets that generally contain every gasket for your engine. For a malibu, I'd wager they run around $100-170US for the V6 (maybe less if you have a 4 cylinder. I've never paid for such a repair, but my mother had a head, plus some other work, done on her Chevy Venture and it was something like $900US. I know how you feel, so good luck. Does the engine get relatively hot while driving? This is usually the first indicator of a bad gasket. You could try some radiator stop-leak ($8 at the part store), but I would be hesitant. It's been known to help some engines, and exacerbate others, causing more damage. I wouldn't recommend it, but if you find the repairs too costly for the value of the car, think about giving it a shot. After getting it into the shop on Tuesday , they ran the dye through the car ,, pressure tested the system for a couple of hours with no drop in pressure. After explaining that i had to top up the holding tank twice since just before Xmas , with the warning light coming on , not noticing any antifreeze on the drive or around the engine , none on the passenger floor , not blowing white smoke , no sweet smell coming from the car at all ,,they were stumped , i told them that the water pump had been replaced within the last 6 months , they decided to go back to that and have a look to make sure that it wasn't a faulty pump ,, they pressure tested it for another 3 hours with the pressure holding the whole time. The only thing that they could find is the rad cap was looking kind of ratty so they replaced that and topped up the fluid and told me to keep an eye on it over the next week or so and if it starts to look low again to bring it in. I've been going to these guys for some time and trust them with all my cars including the company vehicle , they also stated that they've experienced many of these GM engines with the intake problems and didn't notice anything that pointed to my vehicle having that dreaded problem. So right now that's where i sit ,, oh and the service engine light problem was a broken vacuum line to the pvc. Hopefully the cap was the culprit , that's a lot easier to stomach price wise. Gord |
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