Question about 2000 Isuzu Trooper

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Can the EGR valve affect your rear wheel traction? My TOD check light is on and the rear wheel light. Autozone said it was the EGR. If I give a little too much gas, my rear wheels grab traction like I am going to burn rubber. I also have the winter button option but it is off. I would not think they are related. I bought this car from NY and it I am the second owner. Any help?? I do love my car though.

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A stuck or lagging EGR can cause a host of issues, depending on make, model and vehicle. Primarily it can cause strange emissions issues, may cause an engine to race, loss if manifold vacuum and brake booster performance and the engine to ping amongst other things. Honestly, I would NOT trust a counter-monkey with an ODB scantool and a pair of opposable thumbs to look at my dipstick. Spend a few bucks and take the car to a trusted garage and have them diagnose it for you. The vehicle may just be feeling "peppy" as a byproduct of a partially obstructed EGR pintle and/or sticking positioning motor. (IF the vehicle's emissions system employs such a device - some use a simple restricted orifice setup)

Posted on May 10, 2010

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EGR has no relation to your rear traction. EGR is emission only related, typically clogged EGR valve. I'd also have the traction control system checked!!

Posted on May 10, 2010

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1 Answer

What its relation between egr valve and traction control on Chevy equinox 2007?


hi your egr (exhaust gas recirculating valve)is to do with your exhaust gas it reburns gas for better emisions.and your traction control is to to with your brakes and power out put of engine in a event of veh skidding.so they dont actualy affect each other.hope this helps

Jan 17, 2016 | Cars & Trucks

1 Answer

The vtm4 light went on( I think by itself ) will not disengage the malfunction light is also on now air & heat works one day then dont work for a day or two how do I unlock the switch ?


Honda Guy had this to say;
When operating normally your VTM-4 light means the vehicle is in traction control mode. HOWEVER, if the light just came on when you were driving it is an indication that you have a problem with the engine that is causing the VTM system to think the vehicle is in traction control mode because of a loss of engine power or misfire.

Here's how that happens: on a Honda, the way the vehicle restores traction is by reducing engine power to the point where the wheels don't spin as fast and thereby restores traction to a slipping wheel (slipping wheels spin faster than the other wheels). Conversely, when there is a reduction in engine power that is abnormal, the VTM system "thinks" that the engine power is being reduced to restore traction and it triggers the light.

In almost all cases, the light is being triggered by an idle speed control valve malfunction or in some cases by an EGR valve malfunction. It may or may not turn on the check engine light. This problem was fairly common on Pilots in 2004 and 2005 but certainly isn't limited to just those years.

Take the car to a Honda dealer or to a mechanic and have them check for stored codes in your powertrain control module. I think you're going to find that there is a code for an idle speed control valve malfunction or an EGR valve malfunction. The idle speed control valve is warranted for 8 years or 80,000 miles; the EGR for 3 years or 50,000 miles. Your Pilot is probably still in warranty and if so the repairs would be made at no charge

hope that helps
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Jan 16, 2016 | Cars & Trucks

1 Answer

Egr valve stuck/stabilitrak/traction light on dash/vehicle run rough.


Remove and clean or replace the exhaust gas recirculation valve. Replacement is likely your best option. The traction control light could be indicative of a problem with the brake system (check for low brake fluid), a bad or damaged wheel sensor, or a computer glitch. I'd guess wheel sensor as they are the most exposed to the elements. As far as problems with traction control systems are concerned, you are best served by bending over and visiting the dealer. Despite the inflated price they may charge it is far less costly than risking the safety of youself, your passengers or whomever may be using this vehicle.

Feb 22, 2015 | Cars & Trucks

1 Answer

Why is my od panel flashing green on back wheels


Have your owners handbook? The TOD system is explained in that and may offer an answer. Its a traction on demand system (TOD) and will have sensors and switches. I believe it runs the back axle at normal conditions but switches to both axles when traction is low or lost. If you haven't a handbook you might find one online for down load or just to read or it would be in a manual like haynes or chiltons.

Aug 26, 2014 | 1999 Isuzu Trooper

2 Answers

Tod light on in middle


There is nothing wrong with the system. When the TOD is in auto it will only engage the front wheels when the rear wheels lose traction. Newer small SUVs have just the opposite, they are in front wheel drive until they lose traction and then engages the rear. Isuzu was ahead of its time with the TOD system.

Aug 04, 2014 | 2000 Isuzu Trooper

3 Answers

Turn off traction control


It may not have a switch, check your owners manual.

Mar 27, 2014 | 2000 Isuzu Trooper

1 Answer

I have a 2005 Dodge Dakota V8 4x4 My check engine light turned on. I took the truck to Autozone to have them hook up the machine and see what the problem was. It said I have a bad EGR Valve. I havent...


It can affect mileage, but it might not be the valve. EGR systems tends to get clogged by gunk. Take the valve off and see how dirty things are. If the system is clogged up, take apart as much as you can to clean it up. You can test the valve for operation with a good scanner (autozone doesn't do this--they just tell you the code). Here are instructions from autozone.com:

Linear EGR Valve Diagnosis
The linear EGR valve diagnosis procedure varies depending on the vehicle make and model year. Always follow the recommended procedure in the vehicle manufacturer's service manual. The scan tester may be used to diagnosis a linear EGR valve. The engine should be at normal operating temperature prior to EGR valve diagnosis. Since the linear EGR valve has an EVP sensor, the actual pintle position may be checked on the scan tester. The pintle position should not exceed 3% at idle speed. The scan tester may be operated to command a specific pintle position, such as 75%, and this commanded position should be achieved within two seconds. With the engine idling, select various pintle positions and check the actual pintle position. The pintle position should always be within 10% of the commanded position. When the linear EGR valve does not operate properly:
  • Check the fuse in the 12 V supply wire to the EGR valve.
  • Check for open circuits, grounds, and shorts in the wires connected from the EGR valve winding to the PCM.
  • Use a digital voltmeter to check for 5 v on the reference wire to the evp sensor.
  • Check for excessive resistance in the EVP sensor ground wire.
  • Leave the wiring harness connected to the valve, and remove the valve. Connect a digital voltmeter from the pintle position wire at the EGR valve to ground, and manually push the pintle upward. The voltmeter reading should change from approximately 1 V to 4.5 V.
436f9a1.jpg Linear EGR valve circuit. Courtesy of Chevrolet Motor Division-GMC.
If the EGR valve did not operate properly on the scan tester and tests 1 through 5 are satisfactory, replace the valve.

Here is what your valve looks like:
If you have more questions, please let me know.
a65cb7d.jpg

Oct 13, 2010 | 2005 Dodge Dakota

1 Answer

2002 a4 2.5 tdi quattro Traction control light comes on loss of power.. Got the egr valve replaced.. still the same...


traction control has nothing to do with the egr valve.

likely you have a bad wheel speed sensor somewhere.

Have the ABS scanned with a scan tool at your dealer
perhaps.

Hope this helps.

Jul 08, 2010 | 1997 Audi A6

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