![]() This may take a few cycles of running and topping off. Make sure the coolant system is completely full (the radiator itself, not the coolant recovery tank, water is fine). “Borrow” a cooling system pressure tester from a parts place (a parts place that loans tools will charge you the purchase price of the tool, then refund your money when you return it). Another test would be to check for a coolant leak. So fill up the coolant, and fill the refrigerant (one can should do it), and observe closely.Ĭompression check is a good test. The evaporators on these vehicles are known to leak slowly at high mileage. ![]() You might also be low on refrigerant, as the TXV can also make sounds audible in the interior. If the engine is too dirty to see leaks, pressure wash it thoroughly and observe over a period of time. steam from the exhaust at startup or idle They should all have a consistent light dry color, with no moist gunk or buildup. inconsistent spark plug color when looking at all cylinders. chocolate milk looking substance in the oil fill neck The 4Runner heater system performs poorly with anything less than 100% coolant level. It cannot be emphasized too strongly, that you need to fill the system completely. Then watch it for a period of a few weeks. Be sure you get the system 100% filled, including the reservoir. Head gasket is supported by your report of rough running, then smoothing out.įill the cooling system up, it may take several gulps as it fills, in ingests the coolant. The question is why are you low on coolant. Gurgling and erratic heater/temp gage are the giveaways. Also it has 228677 miles on it with regular oil changes of Mobile 1 synthetic high mileage.ĩ9.99% certain you are very low on coolant. Please help before I have to send her to the junker. Anyone familiar with this? I feel like it is falling apart and everything is breaking all at once but I am unable to find the culprit for the misfires. ![]() There is NO smoke coming from the exhaust and NO water/coolant in the oil.Ĭhecked all fluid levels and they are optimal.īurped the radiator to remove any air bubbles.Īnd it is still showing the codes and having trouble during cold start. My OBD is reading a misfire in four, six and a random misfire. The heater takes forever to warm up and I live in Arizona and it's doesn't really get that cold where I am at.(but I still run it in the morning) There is also a gurgling noise coming from behind the middle of the dashboard. The check engine light is on constant as well as the swervey car icon and the VSC Trac light. ![]() While driving the temperature gauge intermittently goes up all the way to hot and then right back down to the middle, mostly at idle and sometime just while driving. At cold start it idles weird the check engine light flashes about four times and then levels out and drives perfectly. ![]()
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