Manafold on left side gets red - 1992 GMC Suburban

Is the engine pipe secured at the gearbox with a good bracket to take the load off the manifold check that the exhaust is clear and not blocked at cadlic convertor,check that the manifold is not getting red hot after a good run.

If you have a 5.4L V8, this is most likley a vuccum leak. If you have a check engine light on, and the code tells you that the mixture is lean in rail one and two, it's bad news. There is a vaccum hose under the manafold that goes to the power brake system. Unless you are a mechanic, the manafold must be removed by a professional to replace the hose as the original EGR valve connections no longer exists. Varriable valve timing on the cam shafts has eliminated the connection above the manafold. About $600.

check for restricted or stopped up catalytic converter.

sounds to me like the catalyter converter is clogged up

sounds like you might have a plugged catalitic converter

its dead easy without a diagram mate remove the original waste gate(like a B.O.V)BUT RECYCLES AIR BACK TO AIR BOX located between the airfilter and intercooler now where the original one was connect your after market one to the intercooler side and cap off the the pipe that goes to the air box.replace the small pipe that was on top of the original waste gate that goes to the inlet manafold replace with a new one and connect one end back to manafold and the other to the top of you dump valve. take your scooby out for a spin and enjoy!!!!!! hope this helps.......AS LONG AS YOU KNOW WHERE THE INTERCOOLER(UNDER AIR SCOOP ON BONNET) IS AND YOUR AIR BOX IS LEFT SIDE OF ENGINE BAY.(LOOK AT YOUR INTERCOOLER LOOK TO THE LEFT OF IT YOU SHOULD SEE A SMALL BLACK PLASTIC THING THAT LOOKS ABIT LIKE A DUMPVALVE THIS IS WHAT YOU NEED TO REMOVE) sorry if i come accross as patronising its just that i dont know what knowledge you have and i just wanted to make sure you knew what to look for.......

Best investment to buy for this car is the break down book (Chilton or Hayes) That will tell you everyting you need to know. but...just did this on my car. have to start by removing the throttle body and disconnecting the 2 cables attatched to it. Then the bracket attatched to the manafold for the throttle body. next remove the air intake assembly. Now with all that out of the way. remove the 2 bolts from the metal tubing for the thermostat. I believe theres like 7 or 8 visible bolts on the intake manafold it self. Remove those. Then theres 2 that are kinda tricky to get to. Damn Mopar for this...one is on the right side as your looking at it back twards the fire wall almost and the other is on the left side, same situation. Need a universal joint socket adapter to get to those. With all that removed, it should come off fairly easy.

The thermostat is in the block on the drivers side behind the thermostat housing. Follow the lower radiator hose to the block.

its the exhaust manafold gasket or the donut gasket in the exhaust pipe, proably the donut gasket.. its a part you can pick you for about $15.. good luck keith...

Get the correct egr valve and when You see how it looks like You will be able to identified it is on the top some where on the side