EGR Systems

Clean the throttle body and the two ports at the bottom. There are 2 ports that allows exhaust gases to recycle to the intake manifold. These often get clogged and cause a p0400 code. It it does not work try cleaning the egr valve and connecting pipes. They may be clogged also.

The car may not be approved at the "car approval station". Maybe you can clean it from soot, it depends on what car you own. EGR= Exhaust Gas Recirculation. It is good for the environment.

emissions and exhaust

This must be common as it happened to my 2000 accord at 94K. It is covered by warranty up to 80K I think, and the cost at the dealer is $385. ($98 parts and 3 hours labor) If anyone knows how hard this is I would like to know too. Thanks

Changing the EGR valve is only part of the solution. There is a special reamer that is required to properly fix the problem. Carbon buildup in the EGR passages is the real problem. You have to drill out the EGR passage and insert a stainless teel tube and then replace the EGR valve. The parts and special tool are available from any Honda dealer although the tool may be on back order.

Actually the government forced Honda to cover this under warranty up to 150K miles now. There is a Honda service bulletin that address this: 98-081 issued March 18,2003. I had this done by my local dealer...they also give you a free oil change and replace the distributor and spark plug wires. I've had 2 mid 90's accords and had this problem on both of them around 120K miles. Good luck!

AFAIK, the 98-081 only covered 95-97. From 98-02 only covered 'til 80K mi.

ABOUT 120 DOLLARS WITH TAX

This is general information for people with EGR valve issues: - The EGR valve- on any car- is a small cast metal assembly connected between the intake manifold and the exhaust manifold. Its purpose is to sense high-carbon emmissions in the engine exhaust. If high enough, the valve opens and recycles the dirty exhaust back into the intake manifold, to be re-burned in the engine. If it's working properly, having an EGR valve cuts your output horsepower by about one third, because you're burning dirty air in your engine. - An EGR valve either works or it doesn't. If it doesn't, it needs to be replaced, not cleaned. Cleaning can remove some of the carbon and other deposits inside the valve, but not enough to do any good. It's also just about impossible to do any real cleaning of the sensor, which is the most important part. - If you know your way around your car's engine, look for a place where the intake manifold and the exhaust manifold seem to be hooked together. What's joining them is the EGR valve assembly. It isn't 'plug and play', but is usually mounted with four bolts. There's also a gasket underneath the assembly to provide a tight seal. If it's damaged or missing, that needs to be replaced, too. - About the only time anyone thinks about an EGR valve is when their car flunks the emmissions portion of the state vehicle inspection. Of course, they want to try to replace the thing themselves, to save money. That can happen, if they are at least a little mechanically inclined and have simple hand tools- wrenches, pliers, etc. Other times, it's better to have a mechanic do it and eat the cost, just to be sure it's done right. - The last EGR valve I replaced was in 1999, on a 1991 S-10 short block. Never having done it before, I fumbled around a little and the job took about 45 minutes. The new EGR cost $57 at Consumer Auto Parts.

It doesn't have EGR

It feeds off the passenger side exhaust manifold. there is a flex pipe that leads right to it. mounted to the front passenger side of the engine. Has a black flex hose that leads straight to the intake manifold. You can see it better if you remove the air cleaner tube and/or filter box.

Depends on engine type. There is no fixed location.

As far as I know ALL cars have an oil pump. Every car I have ever worked on has had the oil pump INSIDE the oil pan.

Black and blue smoke means your engine is burning oil. That is bad. You may have a blown head gasket. That is very bad. You may have worn piston rings. That is also bad. I have no idea why your engine is burning oil but the reason is bad.

i believe the merc cougar (v-6 i assume) was a 3.8L and the v-8 was a 4.6L (that is what i have) on mine it is located behind the left tail light... from the top all u can see is a small white fitting with black vaccuum hoses on each side but from the bottom ( and the only way you can reach it) its a round solinoid with a 2 wire harness comming from it and it is about the diamater of a silver dollar.

I have a 96 ranger with the 3L V-6, and if they used the same configuration, the EGR system is on top of the engine above the drivers side head covers. dont know if it helped ya, but it's what i know...

If you have a 2.4 L engine:

If you look on top of of the engine (where it says 2.4), you will notice a long metal tube coming out of the right side of the engine, if you follow that tube all the way to it's end, it stops at the EGR valve! Hope this helps!

On a V6 it is on the front pass side of the engine, just above the alternator.

No you do not! th egr valve is located just under the throttle body. there are 2 10mm bolts holding it in, you just need to remove air intake to the throttle body! it is directly under it!

I have a dodge durango with a hemi and my egr valve is right below the alternator. It looks like a big bottle of pills with the wire connection on the top. Hope this helps

top of intake behind fuel rail

NO if it has the stock intake manifold, if you have an after market intake manifold like I do, then good luck finding it....I'm still looking for one. Also it should be right up front to the left of the thermostat housing.

Good luck,

Tarlak

You can remove it and flush it out with carburetor cleaner, but 90 percent of the time the failure is in the electronic part and the valve will need replaced.

A 1997 Dodge Dakota does not have an EGR Valve.

to the Owner of the 1986 STE: I own two 1985's STE's and I noticec the PCV valve is on the front valve cover. I hope this will be of some help. Most Sincerely, Kristopher Gerbracht www.kristopher.gerbracht@juno.com

on the left falve cover close to the firewall (small black plastic cilinder with black rubber hose on top) just pull out to remove.

to adjust idle on 2000 impala....Locate the accelerator cable on the throttle body.Have someone push down on the accelerator pedel while you observe the throtle body cable movements.You will notice a stop screw on the throtle body butterfly where it comes to rest against the throtle body.Turn the screw clockwise for more rpm, turn the screw counter clockwise for less rpm. I am not sure if any of the air filter componets need to be removed or not... Should't have to do this.Observe...you can do it...

if it has a 22re engine, low coolant could be the culprit. a bad head gasket (which actually also causes low coolant) could be the problem too. This model year Supra came with a 5M-GE engine and the idle hunt is most likely an air intake leak. check for air leaks from the air filter box all the way to the throttle. you need to check all the joints in that air duct. if air is getting pulled into that duct, the map sensor info to the ecu will be wrong and the computer will try to adjust the engine idle. found 5 holes in my air duct and car wouldn't even idle till it was fixed