[Truckdude80]

I have a 1999 toyota Tacoma 2.7 inline four that dies and it starts but then dies and has coolant in the engine bay and the check engine, oil and battery light are all on. What is wrong?

 

[ShowStop]

I can't diagnose your problem based on that information. Start with checking the fault codes for the CEL. If the coolant leaking? If so, from where?

 

[Truckdude80]

we took it to the shop and it kept dying because the mas air flow sensor failed and for the coolant they didn't talked about that and I don't know where it is coming from

 

[Truckdude80]

this same truck now has a coolant leak somewhere? where are some places I can check that are big Problem areas?

 

[ShowStop]

Leaks from the temperature sensor port on the back of the head are common. Less frequent are from the coolant lines for the IAC valve below the intake or from the water pump on the front of the block (behind the fan).

 

[Truckdude80]

ok thank you, more info
its all over the airbox and engine box

 

[ShowStop]

Based on that I would guess the top plastic cover of the radiator has a crack. Should be able to find the leak with the engine running and coolant up to temp with the system pressurized.

 

[Truckdude80]

ok thank you, You have been very helpful

 

[Truckdude80]

Another question, What is a good tuning chip to use for the 2.7 inline 4?

 

[Truckdude80]

Another question the same truck now has water in the carpet and wont dry. I know it isn't seals because all my seals are good. I had 1-2 feet of snow and the water got worse.Any idea what it could be?

 

[ShowStop]

Another question the same truck now has water in the carpet and wont dry. I know it isn't seals because all my seals are good. I had 1-2 feet of snow and the water got worse.Any idea what it could be?

Which side is wet? Check the seals on the wire grommets and check the evaporator box drain line tube on the passenger side firewall.

 

[Truckdude80]

Which side is wet? Check the seals on the wire grommets and check the evaporator box drain line tube on the passenger side firewall.

front passenger side
front drivers side
rear drivers side
rear passengers side

 

[ShowStop]

front passenger side
front drivers side
rear drivers side
rear passengers side

Thats a major issue. I'm guessing you probably have more than one source of the leak. Sounds like you need to get in the truck and have somebody hose it down and check for leaks.

 

[Truckdude80]

Ok, new question. What engine mods are good to do for the 2.7 I4 engine?

 

[ShowStop]

Upgrading the intake is a good move. Beyond that, not much else will yield significant gains short of a supercharger.

 

[Truckdude80]

Upgrading the intake is a good move. Beyond that, not much else will yield significant gains short of a supercharger.

ok thank you

 

[Truckdude80]

another question. i want to replace my tail lights with leds what are good lens to use? and how much is it to do a 4wd swap for a prerunner?

 

[ShowStop]

Lots of LED options out there. Its all preference. Don't shop by price though. Some of the cheaper lights will fail early.

For the 4WD swap, are you doing the work? If so, you need the front end parts, transmission and transfer and several other bits. Major parts alone can be at least $2500 depending on what you spend on the big items like transmission and transfer. Lookup SafetyDang's 4WD swap write up. He detailed it really well.

 

[Truckdude80]

Lots of LED options out there. Its all preference. Don't shop by price though. Some of the cheaper lights will fail early.

For the 4WD swap, are you doing the work? If so, you need the front end parts, transmission and transfer and several other bits. Major parts alone can be at least $2500 depending on what you spend on the big items like transmission and transfer. Lookup SafetyDang's 4WD swap write up. He detailed it really well.

ok thank you. May the Fourth be with you