We’re sure you will get the right product to keep that Tacoma running for a long time. Some of our top Thermostat Housing product brands are Dorman and OES Genuine. Here at Advance Auto Parts, we work with only top reliable Thermostat Housing product and part brands so you can shop with complete confidence. When it comes to your Toyota Tacoma, you want parts and products from only trusted brands. The best part is, our Toyota Tacoma Thermostat Housing products start from as little as $21.99. I'm going to have the truck looked at by a professional if I can't figure out what the issue is but I'd like to really figure it out on my own for the experience.Your Toyota Tacoma will be happy to know that the search for the right Thermostat Housing products you’ve been looking for is over! Advance Auto Parts has 5 different Thermostat Housing for your vehicle, ready for shipping or in-store pick up. I'm just really confused because the exhaust gas test didn't come up positive and I tested it two times, the second time at operating temperature which is how it should have been done in the first place.ĭo you guys know where the temperature sender unit is at on these 2.7L trucks? My Dad spoke to his buddy and he was saying that there could be a small leak via the temperature sender unit. Whenever I pull the radiator cap off when the tuck has been running for a while I can hear and see a little bit of gas escaping from the radiator. I really don't think the issue is the radiator cap but I might as well replace it just to make sure. Also, after replacing the thermostat we also replaced the radiator cap. Ever since then I have to keep putting coolant in my truck about once a week depending on how much I drive. I then bought unmixed coolant and put that in my truck as it would leave the expansion tank over time. After driving back home for about two hours the engine overheated and I pulled over to see coolant/water exiting from the expansion tank, (the lid was blown off but still connected by the little hinge.) My dad came to the rescue with water and I was able to make it home. After replacing the thermostat, we put fresh coolant in the truck. Well at least that's what my dad and I thought was the problem. I should mention that this issue has been occurring ever since I replaced a failed thermostat. Thanks!Ĭlick to expand.Hey guys, thanks for all your responses. Does anyone have any ideas? This is such an odd issue. It seems that there is something wrong with the coolant somewhere when it passes through the engine block. If I go on for a long drive around an hour or more the truck will overheat and then I'll see that the radiator and expansion tank is low. Maybe there is an issue with the exhaust side or something because there's always a small amount of white smoke when I first open the radiator cap after a drive. I just checked the expansion tank after a drive and see that it's a little overfilled and thus the coolant didn't go back into the radiator. The problem is that the coolant from the expansion tank doesn't go back into the radiator or at least that's part of the problem. When I go on a drive and then check the coolant level I can hear and see the coolant go into the expansion tank. I don't see any seepage by the water pump or the weep hole as well. Note, the coolant bypass pipe was replaced by my dad with the new metal version maybe 8 years ago. I did not see the pressure drop after a couple minutes and did not see or hear any issues with coolant leaking from the radiator, hoses, water pump, or coolant bypass pipe. Next, I then used a cooling system pressure tester and put 1.1atm or 16 psi of pressure on the coolant system. I made sure that the truck was at operating temperature before using the combustion leak tester. the color of the test liquid stayed blue. I've done various troubleshooting tests and am still stumped on what the source of the issue is.įirst, I used a combustion leak tester which came up negative, i.e. I do not ever see any coolant on the ground after the truck sits for a while. The bubbles never go away even after driving a small bit and topping the coolant off. I noticed that even when I let the truck run for a long time with the heater on and the radiator cap off I still see bubbles coming from the radiator fill port. I have to add coolant to my truck about once a week. I have a 2005 Toyota Tacoma 2.7L with 290,000 miles and experiencing a coolant system issue.
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