Can i unplug egr valve

I took it in and my number 1 cylinder has very low compression and they did a leak down test and got air up through the radiator overflow jug and out the tailpipe, which I am told are all signs of a bad headgasket.

I have 0 in the oil or out the exhaust, i have no white smoke coming from teh tailpipe nor have i seen any loss of power in the engine or loss of gas milage. I was just amazed at how differently the engine operated with the EGR valve unplugged over plugged in. The EGR system meters a little exhaust gas into the intake which lowers the combustion temperature which lessens the amount of NOx in the exhaust. The engine will run better without it but will produce more smog.

Over a long period of time the higher combustion temperature can cause valve damage. I have seen many engines torn apart that did not have an egr system and the valves were fine. A few minutes on the valve grinder and they went on for many years more. So odds are my headgasket issue will kill my engine long before a problem from not having the egr valve working? It sounds like the EGR pintel valve is open with this vacuum line connected.

There should be no vacuum to the valve at idle pintel should be seated perhaps the line in connected to an incorrect source. A engine without mechanical defects not yours and a properly configured and operating EGR system will not cause a car to ping. In some cases, yes. Installing an EGR delete on and up 6. In fact, it will set the check engine light on all Ford 6.

As you apply vacuum to the valve, check for diaphragm movement. Also, pay attention to engine idle. The EGR valve is closed when the engine is starting up. The EGR valve remains closed until the engine is warm and is operating under load. As the load increases and combustion temperatures start to rise, the EGR valve opens and starts to leak exhaust back into the intake manifold. Begin typing your search term above and press enter to search.

EGR system does not have much effect on the performance of the engine. It helps in reducing the emission of NOx by adding a little amount of exhaust gas to seep out. But this leaking EGR may cause problems in driving such as detonation, the problem in starting the engine.

An EGR delete kit is an aftermarket performance part that removes the EGR valve and prevents exhaust from being redirected back to the engine. Ultimately, this allows your vehicle to function as if it never had an EGR valve. Soot deposited within the engine stresses the system and causes parts to wear down faster. The EGR Exhaust Gas Recirculation valve directs a small amount of exhaust gases back into the inlet air charge, and lowers the maximum temperature of the burning fuel.

The EGR valve is likely to stick and become coked up on some applications. This can have a significant effect on the performance of the turbocharger. EGR delete can make it a little bit louder under part throttle conditions, but also there is a good possibility that your cam is slightly worn so it makes it even worse now when EGR is closed.

Although it is not illegal to remove the EGR from your vehicle, it is an offence under the Road vehicles Construction and Use Regulations Regulation 61a 3 1 to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet.

The EGR Exhaust Gas Recirculation valve is technically located between the exhaust and intake manifolds, since it recirculates exhaust gasses back into the intake. Gasoline vehicles The EGR valve is more often used in gasoline engines, simply because it enhances performance. Indeed, the gasoline EGR valve helps reduce the combustion temperature and thus improve gasoline engine performance.

Re : egr delete without tuner Need tuning. You used to be able to unplug the egr on older trucks, not sure if you can even do that anymore on the newer ones. It would have a code, and thus a check engine light if you could still unplug it on newer trucks.

Best to have a tuner. Really, any smoke would fall into this category. Most common causes of black smoke are faulty injectors, a faulty injector pump, a bad air filter causing not enough oxygen to be supplied , a bad EGR valve causing the valves to clog or even a bad turbocharger. Some of these are easy fixes. Hi there. It really depends on what the problem is with the vehicle. If there is an EGR code then some of the time the EGR can be cleaned, but most of the time it will need to be replaced.

If you do this yourself you just need to be really careful not to get any of the carbon in the engine.