Question about 2000 Toyota Tacoma PreRunner

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Coolant leak 3.4 toyota

Hard to pinpoint rear of engine leaks not head gasket but possible intake manifold

Posted by scott urquhart on


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There is water from condensation from the a/c system that will drip onto your exhaust manifold when you turn the engine off after running the a/c for a while. Check coolant level daily when your engine is cold and if it isn't dropping then it is just the water from the cold a/c.

Posted on Sep 13, 2012


5 Related Answers

adrian halligan

  • 1075 Answers

SOURCE: loose coolant, but no leaks

you have a leak somewhere? it could be a leak onto a hot pipe and evaporateing,or a faulty pressure cap.was the head re torqed after about 5/6 thou/mls.put some clean paper under the car at night and see if you have some wet patches in the morning.hope this helps .adrian

Posted on Feb 25, 2009


Abdi Jama

  • 119 Answers

SOURCE: 1991 Toyota Pickup Leaks oil

put new cylinder head gasket cover.clean the engine,if its check the cylinder head boltes and tight.

Posted on Sep 19, 2008

Ronnie Houston

  • 2920 Answers

SOURCE: coolant leaking on manifold, steaming.No hose or radiator leak.

i think its going to be the head gasket duto the way its leaking coolant. one of the water jackets maybe i would have it checked to be sure but it sounds like head gasket

Posted on Feb 03, 2009


  • 23 Answers

SOURCE: engine check light read p0171 and p0420, noticed a leak of engine oil on cylinder 2 area of head gasket when checking the sparks plug, is that the cause?

may be oil feed to cylinder head replace gasket

Posted on Apr 20, 2009


  • 1 Answer

SOURCE: water leak under the intake manifold,1995 toyota 4 runner

There is a heater core bypass pipe that runs from the block (under the manifold) to the bacl of theengine where you will see a flat rectangular "sheet metal" thing with a pipe coming out of it. The a rubber hose connects. You need to pull the top air plenums and intake to get to it. The p[ipe flange bolts to the block with silicone rtv as a sealant.

Posted on Nov 27, 2009

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Coolant leak at rear of manifold

Hello glennjenkins: My name is Roger and I will help you. You did not say what size the engine was in your car? I will assume it is a 3.8 v-6.The problem most likely is the intake gasket. These engines were built with a intake manifold set made of plastic. Over time they will crack and start leaking. The fix is to replace the gasket set. You should change the oil and filter when changing the intake set. When you pull the intake you will have coolant run into the oil pan. Also when the gasket leaks it is possible for coolant to leak into the oil pan. To replace the intake gasket does require some special wrenches. Such as a inch pound torque wrench and a torques socket for a special headed bolt.
Should you need further help please just ask. Please rate the quality of the answer you received. This way we know you received helpful information. Thank You for using Fix Ya. Roger

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