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i have a 2010 toyota tundra with the 5.7 and about 130000 miles on it the last week or two i have been losing coolant. i did a pressure test and it is leaking pressure but dont see where. then i did a oil change today and now i have a little bit of white smoke if i just let it idle for a little bit. not sure what to test for next
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A video of the white smoke would be helpful with this situation. Is this white smoke appearing once you first start the truck or is it appearing after a short drive?
I hate to say a blown H/G because i really doubt its that. Is there any leaks? Have someone rev the engine (make sure its warm) and look at the exhaust if more smoke appears you may have a problem. If no smoke comes though, have a friend put the car in drive keep their foot on the brake while the foots on the brake and rev it to about 1.7k 2k. this will put a load on the engine. Or an easier way would be to take the radiator cap off and start the engine if coolent shoots out all over the place the H/G is toast.
there is no external leaks of coolant any were that i can see. i tried to take a video of it but the smoke hardly shows up. but when i push harder on the gas more smoke comes out. but if i hold the throttle open the smoke seems to go away
Ok, open the rad cap and take a good smell if you smell exhaust its the H/G. does the exhaust coming from the muffler smell sort of sweet? Get in there and take a good smell if need be. Take your finger and run it on the inside of the muffler is your finger clean? or is there a bit of residue on it or is it really dirty?
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