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Will bad egr valve mess with car idle on 1999 4 cylinder honda accord?

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Yes a bad or clogging egr valve will cause all sorts of power / drive-ability problems --idle ,stalling and even no start ---

Posted on Dec 04, 2016

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My 1994 Honda Accord Lx running richemission: failed emission test.


When the mechanical timing "slipped" the valve timing was affected. Valves can be bent if they strike a piston. Have a compression test performed on each cylinder. If the compression is low on any cylinder, likely the cause is a bent valve caused by the mis-timed engine. The cylinder head will have to be removed and the bent valves and valve guides replaced as part of a "valve job."

Feb 10, 2015 | 1994 Honda Accord

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1993 accord has dead cylinder


I have seen many of those years Accords with a burnt intake valve, from too much EGR gas entering only one cylinder, overheating and eventually burning and breaking that valve. This causes the valve to not be able to seal the combustion chamber, resulting in no compression and no power from that cylinder. You will have to remove the head and change out the broken valve. When done replacing the valve, clean out the EGR ports in the intake or the valve will be damaged once soon. Those blocked EGR passages are what cause the burnt valve problem in the first place.

Jul 14, 2012 | 1993 Honda Accord

1 Answer

When the egr valve is bad on a 1992 honda accord wagon what happens?


If it's stuck closed, you will feel no ill effects. If it's stuck open, the car will not idle right and be hard to start. If you're getting an egr trouble code from your accord, test the egr valve to make sure it's working; use your finger to push up on the egr valve diaphragm, while the car is idling....car should shake and shut off if the egr valve is good. The one vacuum solenoid that feeds the egr valve, on that generation accord, is known to go bad and cause the egr trouble code. Check that solenoid if the egr valve tests ok.

Sep 15, 2011 | 1992 Honda Accord

2 Answers

Water pump went out on my 96 Honda Accord EX 2.2L VTEC. I replaced timing belt, balancer shaft belt, water pump, both serp belts, and tensioner according to manufacturer specs. Put everything back together...


A bad EGR valve could cause your car to experience hard starting, a rough idle, cruise control surges, popping noises from the exhaust, backfiring and sudden engine stops with cold weather or after deceleration.
Read more: Symptoms of a Bad EGR Valve ' eHow.com http://www.ehow.com/facts_5980898_symptoms-bad-egr-valve.html#ixzz1NDPE0WZk

May 23, 2011 | 1996 Honda Accord

2 Answers

I need to replace the EGR Valve according to the report from the check engine report but I cannot find it to ge the correct part number. Where would this be on the engine?


EGR valves themselves rarely fail. Many are vacuum operated, and with a honda, it is a mess of vacuum wires underhood. I would have the car checked for vacuum leaks, and what actually controls the vacuum to the EGR valve first. Don't replace unless your certain it is the valve. Might be a cheap fix. ; )

Jan 20, 2011 | 1999 Honda Prelude

1 Answer

92 Honda Accord boggs down when throttle is pressed at idle speed


try unplugging the egr vacuum source and plug the line and drive. If no difference you ruled out the egr as being the issue.
Please do not rate this solution since by not seeing the car and doing my own test there is no way to tell if maybe you just hooked up something wrong.

Dec 29, 2009 | 1992 Honda Accord

2 Answers

Check engine light comes on and off, auto zone test read back EGR flow insufficient/manufact.specif.DTC/see service manual.what does any of that mean?HONDA ACCORD 4CYL.2001


The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. When the EGR valve goes bad, it must be replaced.

The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on acceleration.

Here is a picture of where the EGR Valve is located (Accord 1999). Replacing it is fairly simple and straightforward. A vacuum line and a couple of bolts. You'll see what you have to do when you look at it.

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If you are replacing the EGR Valve due to the Check Engine Light (MIL) being on with a DTC P0401 then I suggest contacting your Honda Dealer. There was a Product Update Campaign (PUD) in the fall of 1999 that corrected the problem.

Another times, the clean is the solution...I hope help yoiu with this. Good luck, and remember rated this help.

Sep 03, 2009 | 2001 Honda Accord

2 Answers

Crank and start but wont stay on


bad ignition,air flow sensor that keeps leaning out the mix and it stalls,bad iac idle control motor,start with a good tune up.cap rotor,wires plugs air filter and clean the throttle body.some honda cars have bad egr valves and the intake manifold has to come apart because it is plugged up inside with carbon.

Jun 07, 2009 | 1997 Honda Accord

2 Answers

How do you clean the EGR valve on a 99' Honda Civic?


Pull vacuum on egr valve with engine idling and see if engine stumbles and tries to die until vacuum is released. If this DOES NOT happen the egr exhaust passage is plugged will need to remove egr valve assembly and remove carbon from passage into cylinder head.

Mar 29, 2009 | 1999 Honda Civic

1 Answer

Honda Misses.


Pin point the dead hole and check that injector.

Dec 23, 2008 | 1995 Honda Accord

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