How do you replace the heater core in a 1999 Toyota Tacoma?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

First you would have to remove the heater core and here are the steps.


I removed the heater core in a 4runner without removing the AC. Some claim it is easy to remove the heater core unit without removing the dash by removing the AC evaporator and the blower motor. Well.. my experience is, it is impossible to remove the heater control unit without removing the dash. It is not hard. Best thing is you can do it if you have time and patience.

The tools I used are 10, 12 and 14 mm and Philips screwdriver.
You can see the step by step pictures towards the end of this thread.

Before doing anything, remove the ground terminal from your battery and wait about a minute.

Remember, the dash will come off with a very light pull. if it is not coming off, you might have a nut/bot some where.

You then can remove the cross metal bar holding the steering column.

Disconnect the heater/cooler selector cable and air flow direction cable. Make a note (sharpie) where the metal clip holds the outer housing of the cable.

Remove all the 10 mm nuts/bolts holding the Heater/AC control unit, AC evaporator and blower. This will give some extra space to giggle around the pull the heater core unit out.

This is also good time to check any leaks in the Heater control valve in the engine bay. IF you get hot water in the heater core when you are running the AC, it will kill the cold air as about 20% cold air is directed through the heater core.
1 person found this useful

How do you replace the heater core in a 1999 Buick Century?

Replacing Buick century Heater Motor . Remove the bottom cover on the passenger side of the dash behind the glove compartment, disconnect the connector on the heater motor. remove the three (3) screws in the flange of the motor. pull down and toward the seat to remove the heater motor from the ho ( Full Answer )

How do you replace heater core on a 1999 Lincoln Town Car?

Answer . The question you ask is too\ninvolved for a proper answer. \nYou need to go to a car \nparts store, and get a\nrepair manual for your car.\nThey cost about $16.00\nOr, go to a Public Library.\n. \n.

How do you replace the heater core in a 1993 Toyota pick up 22r?

You'll have to drain your coolant and disconnect the two coolant hoses that go to your heater core at the firewall. Remove the 2 bolts you see between the hoses on the firewall. Inside, you'll have to remove you entire dash. The support bar that runs from door to door needs to be removed. From here, ( Full Answer )

How do you replace a 1999 Kia Sephia heater core?

MAKE sure that is the problem.If heater is blowing cold air,reach on passenger side,under dash,and find the heater blower,and gently pull the white plastic piece to make sure it is not stuck on cold.They go from hot to cold easily but not back to heat.

Where is the heater core in a 1999 golf and how do you replace it?

Answer . Is it the early '99 mk3 or the later '99 mk4??\nEither way you have to remove the I/P (dash) and heater\nbox. On the Early 99 you have a large brace to deal with\nbefore removing the heater box. On either model the A/C\nrefrigerant has to be recovered and that requires a shop\nwith spec ( Full Answer )

How do you replace the water pump on a 1999 Toyota Tacoma V6?

Answer . \nyou have to remove the timing cover and belt first, its driven by the timing belt and is about dead center of the front of the engine. once the belt is off its a matter of a few bolts to remove, clean the block of all sealant, apply sealant to the new pump and bolt it back in. the t st ( Full Answer )

How do you replace the alternator on a Toyota Tacoma?

The first thing you have to check is the kind of alternator that your truck needs. You must check this out with care because there are different models for different years. Then you start by disconnecting the negative battery cable with a wrench, preferably a socket wrench. You have to remove the r ( Full Answer )

How do you replace the heater core on a Toyota Corolla?

Answer 1990 What year Corolla ? 1992 Remove the Old Core 1. Unplug the Corolla's the negative battery cable and wait 90 seconds for the air bags to lose energy. Drain the coolant from the cooling system, disconnect the heater hoses and discharge the air conditioner refrigerant. 2.Take out the d ( Full Answer )

How do you replace a heater core on a 1999 durango is it a do it yourself job?

\n. \n Answer \n. \nIts A Difficult Job Having To Remove Lots Of Interior Parts. I Would Suggest The Dealer Or A Very Good Mechanic.\nGood Luck\n. \n Answer \n. \nAlso, have them look at the evaporator core while they are in there. It is in the same spot and they have been known to fai ( Full Answer )

When do you Replace a 1999 Toyota tacoma 4 cylinder timing chain?

\n. \nTo whom ever you are: :)) Timing chains, unlike timing belts, do not require regular interval \nreplacement. The time chain is a life time part, (in most cases), in your case it is not under any warranty. The timing chain is oiled by splash from the oil pan itself. If you change your oil ( Full Answer )

What antifreeze for a 1999 Toyota Tacoma?

Answer . The Green AntiFreeze is the answer to this question.. The only Toyota's that takes the Pink AntiFreeze are the 2006 and newer.

Where is the block heater on a 2006 Toyota Tacoma?

On the 1GR V/6 engine, it is on the left (driver's) side at the rear just above the starter motor. It fits into a recess in the engine block. They are standard equipment on vehicles imported into Canada but not into the U.S.

How to replace 1988 Toyota pick up heater core?

I have '89 pickup, and my advice would be get a couple estimates cause its a b----! Currently in the process, and if you are not prepared to totally remove all dash components, drop steering wheel, remove reinforcement bar just to get access to the core, then you may want to rethink! Its going to ta ( Full Answer )

How do you replacement the heater core on a 1999 ford explorer?

The dash panel has to be removed along with the steering wheel and steering column to access the plenum box. The plenum box then has to be removed to get to the heater core. This requires evacuating the AC system, draining the radiator, disconnecting all lines and removing the box. Replacing the hea ( Full Answer )

How do you replace a heater core on a 1999 Ford Expedition?

The heater core is difficult to change on the Ford trucks. They have it buried in the plenum box and you have to remove the steering wheel, steering column, dash, evacuate the refrigerant system, drain the radiator, and remove the plenum box to get to the core. Replacing the core is easy, getting to ( Full Answer )

How do you replace the heater core in a 1999 dodge ram?

You will need to remove the dash and HVAC housing to access theheater core. Start with disconnecting the battery. You will then need to recover the Freon from the ac system anddrain the antifreeze. Under the hood you will need special tools to disconnect the aclines at the firewall, remove the heate ( Full Answer )

When replacing a heater core on a 1999 Mercury Grand Marquis Does it require the removal of the dash?

Yes, kinda. The correct way is to remove the dash because you need to remove the AC box to access the heater core. I had a mechanic that partially removed the dash and held it out of the way with a piece of 2x4 lumber which eliminated the need to remove the whole thing. Yes,but dont be intimidated ( Full Answer )

How hard is it to replace heater core on 1999 ford expedition?

Caution *** . Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink ant that is left in an uncovered ( Full Answer )

How do you replace the heater core in a Opel Astra 1999?

To replace the heater core in a 1999 Opel Astra, remove the centerconsole and remove the 6 5.5 mm bolts. Also remove the clips andremove the cover and plastic clips on each pipe. Finally, lift theheater core and replace with new.

How do you replace front heater core in a 1999 ford expedition?

The heater core is difficult to change on the Ford trucks. They have it buried in the plenum box and you have to remove the steering wheel, steering column, dash, evacuate the refrigerant system, drain the radiator, and remove the plenum box to get to the core. Replacing the core is easy, getting to ( Full Answer )

How do you replace a heater core in a 1999 jeep grand Cherokee?

Changing the heater core requires complete removal of the dash panel and plenum box. To do this you have to remove the steering wheel, steering column, evacuate and recharge the refrigerant system and drain the radiator. I would only consider changing the heater core if it is physically leaking into ( Full Answer )

How do you replace a 1999 Jeep grand cherokee's heater core?

I would suggest replacing the heater core only if you have a puddle of coolant on the passenger side floorboard. More likely the problem is with the blend door not directing air through the core. This is a very common failure on the GC. Check the web site at heatertreater (.net) for diagnostic proce ( Full Answer )

How do you replace a heater core for a 1999 ford F150 with air?

The Heater core is difficult to replace on the F150 since it is buried in the plenum box. Getting to the core involves removing the steering wheel, steering column, complete dash panel, evacuating the AC, draining the radiator, and finally removing the heater box. Once you have the box out(8-12hrs), ( Full Answer )

How do you replace a 1999 cavalier heater core?

Caution: On models equipped with Delco-Loc 2 or Theftlock audio systems make sure you have activation code. Disconnect the negative battery cable . Drain the cooling system . Disconnect the heater hoses at the heater core inlet and outlet on the engine side of the firewall and plug the open fitti ( Full Answer )

How to replace heater core 1999 ford f150?

The heater core is difficult to change on the Ford trucks. They have it buried in the plenum box and you have to remove the steering wheel, steering column, dash, evacuate the refrigerant system, drain the radiator, and remove the plenum box to get to the core. Replacing the core is easy, getting to ( Full Answer )

How do you replace the heater core in a 1999 dodge ram 1500?

You will need to remove the dash and HVAC housing to access theheater core. Start with disconnecting the battery. You will then need to recover the Freon from the ac system anddrain the antifreeze. Under the hood you will need special tools to disconnect the aclines at the firewall, remove the heate ( Full Answer )

How do you replace the heater core in a 1999 dodge ram 2500?

You will need to remove the dash and HVAC housing to access theheater core. Start with disconnecting the battery. You will then need to recover the Freon from the ac system anddrain the antifreeze. Under the hood you will need special tools to disconnect the aclines at the firewall, remove the heate ( Full Answer )

Replace heater core i n 89 Toyota pickup?

It involves taking the complete dash out of the vehicle and will take the average person at least 8 hours if not more. Here is a link to a DIY http://www.yotatech.com/f116/writeup-89-94-heater-core-replacement-124222/

How do you Replace heater core in a 1999 s10?

I know you must take the dash out and heater box. Make sure you hook all lines back up correctly or your vents won't work correctly. Good Luck and know that you'll be in for a LONG day!

How do you replace a heater core on a 1999 cavalier?

Caution: On models equipped with Delco-Loc 2 or Theftlock audio systems make sure you have activation code. Disconnect the negative battery cable . Drain the cooling system . Disconnect the heater hoses at the heater core inlet and outlet on the engine side of the firewall and plug the open fitti ( Full Answer )

How do you replace a heater core in a 1999 ford f250 v10?

Keep the car's owner's manual handy. Remove the screws or bolts that hold the heater core in place. It may be that you need to remove more parts of the car in order to get to the heater core. Disconnect the intake and outtake hoses from the heater core. Remove the heater core from the car, taking sp ( Full Answer )

How to replace heater core 1999 ford ranger?

1) Disconnect battery terminals to disable air bags. 2) remove radio bezel 3) remove instrument cluster bezel 4) remove kick plates 5) unbolt instrument cluster pull forward 6) push in flat on speedometer cable to disconnect remove cluster 7) disconnect heater hoses in engine compartment at passenge ( Full Answer )

How do you replace the heater core on a 1999 Dodge Caravan?

Drain the radiator. Disconnect the heater hose connections at thefire wall. loosen the dash screws and pull it out, just enough toreach the heater core. Unbolt the core and pull it out. Revers theprocess for installation.

How do you replace heater core in 1999 ford f250 superduty?

The heater core on a 1999 Ford F250 Superduty is replaced byremoving the heater hoses, disconnecting the wiring harness, andremoving the retaining bolts. The cover can then be removed, theheater core unbolted, and removed from its housing.

How do you replace a heater core for a 1989 Toyota supra?

first of all you have to drain the coolant out then disconnect the battery. then you have to remove the dash and then the heater box but dont forget to remove the hoses under the hood, after you get the heater box out then remove the heater core, just go in reverse order putting it back

How do you replace a heater core in a 1999 subaru legacy gt?

With difficulty. Tried to remove the one in my 1997 and found that you really do have to remove the entire dash to access it. If you have it out already, try to get your hands on a new heater box, saves the hassle.

Where is the block heater on a 2007 Toyota Tacoma?

Block heaters are optional equipment and not normally installed unless the vehicle is sold in Canada or a very cold climate. If your vehicle has one there'll be a power wire near the front of the vehicle that you can easily see.