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What will be the effect if the exhaust and entake valve are tammpered a litle?

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  • Cars & Trucks Master
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Bad fuel mileage to a no start. If you did this mechanically , bad news for you. I can adjust this with a scanner , some. Usually timing components.

Posted on Dec 11, 2016

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What will happen if the entake and exhaust valve were tampered alittle of its tip of expedetion ford automatic 1999


Depends what you mean by 'tampered a little'?

If you ground a quarter inch off the top, a lot will happen. If you tapped it with a hammer, nothing will happen.

Dec 11, 2016 | Ford Cars & Trucks

Tip

EGR Exhaust Gas Recirculation valve


1.6) EGR - Exhaust Gas Recirculation valve (actuator)

What is it? This is a device that reduces engine emissions of nitric oxides by allowing a measured amount of exhaust gas to re-enter the intake manifold and mix with the air prior to entering the cylinders. The EGR can be vacuum (older types) or electrically driven (modern) or a hybrid combination of both (intermediate age). Adding inert exhaust gas to the intake charge artificially enriches the fuel air mix (by diluting the air) and thereby reduces ignition temperatures associated with lean running conditions

Where is it located? The EGR is associated with the intake manifold. The EGR is sited at a point of contact with both the exhaust and intake manifolds. If the exhaust manifold is remote to the inlet manifold, for example onthe other side of the engine, an exhaust feed pipe leading from the exhaustmanifold to the EGR is provided.

How does it work? Generally intake manifold vacuum acting on a diaphragm draws up on a pintle valve to open a connection between a (usually round) entry port for the exhaust gases and an exit port (usually rectangular) to the intake manifold. The opening of some modern EGR valves iscompletely under the (ECU) control of an electrical motor/solenoid. Since an open EGR port effectively acts as a vacuum leak in the inlet manifold leading to potential starting and idling difficulties, the EGR valve operation is often impeded by an electrical over-ride at cold/start-up until the engine reaches running temperature and high revs. The ECU takes signals from the coolant temperature sensor to determine when the engine is hot before allowing the EGR to function. In some cases, a differential pressurefeedback exhaust (DPFE) sensor, connected to pipes on the exhaust feed to the EGR, informs the ECU when and by how much the EGR should be open.

NEXT 1.6b) EGR faults and how to fix

on Jul 15, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

Code P0401 for Toyota Tercel 1996


It means that the EGR flow is insufficient. This can be caused by several things, a couple of them are- a bad EGR valve, you can test it with a vacuum pump. It can also be caused by the EGR plumbing being clogged up. The engine will run fine with that code, it only effects you exhaust emissions at cruising speed, that is the only time the valve opens, to recirculate exhaust gas which reduces combustion chamber temperatures and thus reduces emissions.

Jan 29, 2015 | 1995 Toyota Tercel

1 Answer

Bottom hose on egr valve keeps blowing off, what could be causing this?


Hoses are a vacuum source,they won't come off,
unless somehow the valve is shot inside & exhaust
gases have some effect

You should have a MI Lamp lite if the valve was bad

Sep 30, 2014 | 2000 Chrysler Cirrus

1 Answer

Push on brake pedal and air comes out exhaust tube 1995 freightliner fld120


the foot brake on the truck is effect a large air pressure regulator that you control with your foot. If you apply pressure and the air is escaping out the valve exhaust then I would think that the diaphragm in the brake unit is faulty. I would remove the brake unit for investigation / repair or replacement.

Jun 10, 2014 | Cars & Trucks

1 Answer

Dirty egr valve effect mpg


The valve opens allowing exhaust into the intake manifold cooling the temperature of the combustion inside the cylinder. -------------------------------------------------------------------------------------------
Super VAG K+CAN V4.8

Jan 22, 2013 | 2000 Buick Park Avenue

1 Answer

I get engne code p0300 what does that mean and what do i do already changed plugs and wires


check the coil, Normally when that code comes up its followed by more, as in P0301 02 03 , which would indicate which cylinder is being effected, P0300 Random/Multiple Cylinder Misfire Detected is what the code means and any of these could effect that code being thrown
  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve / passages
  • Faulty camshaft position sensor
  • Defective computer

Jul 10, 2011 | 1999 Dodge Grand Caravan

1 Answer

Where is the egr valve located?


I assume that this if the V6 3.8, if so it is on the left above the alternator. To further confirm its identity it sits between the exhaust supply pipe and the inlet manifold. Take care removing the egr valve and you will be able to reuse the egr gasket when refitting. Cleaning the egr valve is pretty easy using carb choke spray and plenty of cloth, let give the spray time to do the work. The exhaust supply pipe interior can be cleaned using an old frayed brake cable; fitting this cable it into the chuck of a drill makes it very effective rotary brush. Ensure you vacuum out the crud out before reassemble

Nov 30, 2010 | 1996 Chrysler Town & Country

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