Need some opinions from some real toyota 4-runner enthusiast. I have a 1991 Runner 3.0 V6 Auto. I had to replace the ****** but used a used torque converter, ever since I replaced it the manifolds glow red(when trying to drive it, it idles fine.) I have talked to a few mechanics their opinions were catalytic converter, but ive already replaced that too when i put my flowmaster exhaust on. Also have checked the timing and thats right as well. So I am led to beleive that it is the torque converter because it has only done this since the ****** was replaced and the used torque converter was installed. Also ****** shifts 100% correct so i do not beleive its the ******. Just like to get some good feed back if possible thanks. Has pleny of power for first mile but then looses power as the manifolds begin to glow.

Marvin

• 85242 Answers
• Posted on Sep 03, 2008

SOURCE: 2000 murcury couger imrc

It is on the intake manifold upper plenum, it iws a vacuum motor, the rod comes off and sets the code.

SOURCE: ENGINE LIGHT ON SLIGHT LOSS OF POWER AND POSSIBLE RATTLE

p2004 (Intake Manifold Runner Control Stuck Open)You need to take a look at the IMRC actuators on the intake manifold. You can try using a screwdriver or other tool to move the actuators to see if one is stuck in the open position. Do not use your fingers to do this, because if one is open and decides to close it has a bit of force behind it and can injure you. If the IMRC is stuck open, it is usually due to deposits in the intake manifold. Repair involves removing the upper intake manifold and cleaning out any deposits in the IMRC plate area. I would try running some Techron Concentrate in 2 tanks of gas to see if it dissolves enough of the gunk on the plates to free up the stuck one. Certainly a lot cheaper than having to pull the intake manifold and cleaning the plates. Always run tier one gasoline like Shell or Chevron to reduce the buidup of deposits.

Dave C

• 1050 Answers
• Posted on Apr 05, 2009

SOURCE: I have a '96 Ford Windstar 3.8L & getting OBDII P1537 code.

A common problem on Windstars, there are two IMRC valves, the only way to fix them is replacement, which is not that hard. They are mounted on the end of the intake manifold and control runner length. There is a front and rear one, I'm not sure which one this is but you'll probably have to go to Ford to buy it and they should be able to tell you with the code number. The problem will not affect driveability that much, but if you have emissions testing at your location, this will likely cause it to fail.

Romy Kettlewell

• 154 Answers
• Posted on Aug 07, 2009

SOURCE: Intake manifold runner control stuck closed?

you don't have to replaced the manifold just the runner control. see this all the time at work the part is about 175.00 and an hour and a half to install. your local dealer should be able to fix this for you

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.

Testimonial: "thanxs"