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EGR Systems
When the temperature in the combustion chamber becomes extremely hot, nitrous oxides are formed, which then turn into smog. In order to reduce such occurrence, the exhaust gas recirculation system minimizes the temperature in the combustion chamber.
1,560 Questions
What can cause low flow egr problem?
Carbon build up.
Sticky or stuck EGR valve.
Vacuum supply line damaged/leaking.
Faulty EGR valve.
Faulty EGR Position sensor/wiring.
Where is the egr valve in a 2005 pacifica can you replace it yourself?
On a 3.8L engine, the EGR valve is at the back of the engine on the right side, near the top of the engine. It is held on to the engine by two small bolts. Attached on the side of the EGR valve is a metal pipe held on to the EGR by two small bolts. If you remove the EGR, be careful not to drop any of the bolts down in the engine as you will never find them. Experience talking here.
Fairly easy to replace but make sure you get the right one for your sized engine. I got mine at NAPA for about $70.
Where is the EGR valve boost sensor located on 1997 Ford Aspire?
On the firewall next to the EGR vsv.
How do i fix the Egr valve in a 1997 Pontiac transsport?
First verify that you haven't got a clogged passage in the intake. Remove the valve and start the engine. If it starts and runs (possibly at an abnormally high idle) reasonably well, the passage is clogged and must be cleaned.
Otherwise, put a new EGR valve on it. The valve itselt is not repairable.
Obd system-diagnostic trouble code present p0442 p0455?
P0442 is an Evaporative Emission Control System Leak (a small leak) ("EVAP") The sensor is indicating a fuel vapour (US spelling "vapor") in the EVAP system. It means a small leak has been detected. Apparently the leak can be a hole as small as 0.04" in diameter. The EVAP control system prevents the escape of fuel vapours from a vehicle's fuel system. Fuel vapours are routed by steel tubes and neoprene rubber hoses to a charcoal cannister for storage. Later a purge control valve opens allowing the fuel vapours to be sucked into the intake system of the engine. The problem is not likely to cause the engine to operate any differently. The most likely cause is a loose or poorly fitting gas cap. Other possible causes are: a non-conforming gas cap, a small leak or hole or crackin a fuel fuel vapour hose or tube, a small leak elsewhere in the EVAP sustem or a faulty vent o-ring seal, or a faulty sensor. The most common repair is to remove, inspect and reinstall the gas cap, clear the code and drive to see if the code reappears. Replace the gas cap. Inspect the EVAP system for cuts, holes, cracks in the tubes and hoses. A smoke test is helpfull in detecting non-visible holes. Patience is also helpful. Steel tubes can rust out as a result of salt and water exposure and neoprene rubber can become brittle with exposure the UV light and Ozone. Donald Partridge 2123 Prince Charles Road Ottawa, Ontario, Canada
Where is the EGR valve located on a 1996 F150 ford pick up?
go to the website autozone.com go to component location it will give a diagram were it is located.
It is not legal, and as the computer tries to correct for the missing converter, the fuel economy and engine performance will suffer.
Most likely if you remove the cat, the fuel mileage will get worse.
Ok, so since that won't work, can I buy a turbo muffler or something, such as Hooker. You can convert it to a true dual exhaust system and it will help your fuel economy but it is not cost effective. By the time you purchase the necessary parts and another converter to keep it legal, the money you spend can never be recovered in fuel savings.
What are the pros and cons to installing an EGR blocker plate to a lly duramax?
Pros: Healthier engine, cleaner intake, increased performance, increased mileage.
Cons: It's illegal. and may void any warranties
lsc coupes are very well designed. placing "aftermarket" headers doesn't really do much but cost you money. these cars are very fast as is, think... it was after all based on the ford gt mustang engine and tranny. performance wise, as a mark 7 owner i wouldn't change anything.
LOL performance wise?...I think you mean "economically"
AnswerIn specific, yes, the vehicle did come with factory headers as well as true dual exhaust. AnswerOK...So Im assuming that by headers you mean aftermarket...all cars have "headers" aka exhaust manifolds. Changing the exhaust manifolds is a GREAT idea to add extra horsepower and torque to your Mark. One of the weakest links on the 5.0 motor is the exhaust. The factory exhaust manifolds on the 5.0 are tiny little tubes of metal that choke your motor from breathing. If youre thinking of doing ANY kind of horsepower adding upgrades, don't start anywhere else but with new exhaust and intake components (upper and lower). 1 5/8" headers are ideal. Equal or unequal length are good, longtubes are the best but require some extensive work for the average do-it yourselfer. In my opinion start with a good catback system (mufflers, H-pipe, etc.) before you go getting involved with new headers. Just think of your motor as needing to breathe easier to make more power. The 5.0 motor is such a dog compared to what it could be...even in a Mustang...trust me, I do this for a living...these guys that posted before me just must not like fast cars =) AnswerI agree with the last post. The headers on the Marks just like the Mustangs are tiny. After market headers as long as they are larger diameter will make a difference. I owned a Mark myself. You should really upgrade the hole system but I know alot of the time people don't have $300 to drop on a new system. Headers would be a good place to start. Down the road you may want to look into getting you exhaust ports matched to the diameter ao the headers as well. They are alot smaller, but I strongly sugguest you have this done by a professional shop.hell yea after market headers will add power, look at the baby headers that came with the car.
ANSWER
I have a fully worked out 91 LSC special edition black. Leave the stock exhaust headers! They are plenty to push anything that the engine can handle. Get rid of the "4" cats and replace with 2 high flows to keep it legal. Switch to an Ford Explorer intake manifold from the junk yard (will require custom hood work to fit underneath) And put in some 1.7 roller rockers. If youre gonna go that far, MSD ignition and high power coil is recommended. I also converted to a stick shift...and i eat mustangs up all the time
Where is the PCV valve on a 97 Nissan ka24 engine?
right behind the alternator on the truck and in the intake by the aac valve on a stanza ang axxess
Where is the E G R valve located on a 1994 ranger 40?
its at the right rear corner of the intake manifold
What to check next if you have replaced the DFE sensor on the egr system?
That would depend on what problems you are having, or what codes you pulled. But I would say the egr valve would be next if it is egr related problems based on what you changed already.
How do you locate and replace the EGR Valve on a 1996 Ford Contour?
Which engine? If this is a check engine light or emissions test failure be certain ex. gas & intake passages are clear. Bob
How do you know that there is a bad valve in a Daewoo laganza?
First, the vehicle should be running rough. If you have a bad valve, you will have a low compression situation in the problem cylinder. The only way to check this is to have a compression test performed. After the test the problem cylinder will be indentified. As a tech I would put compressed air into the bad cylinder to see if the air escapes. If you aren't familiar with major automotive workings, this may sound like rocket science. If you had it to a shop and this was what you were told, I would assume it to be true. If you are n't feeling too trustworthy of that shop there is some other things to consider. If you have the rough running condition, you could have a bad ignition component causing the rough run condition. I have seen many mis diagnosis outside of our shop. The only true way is to perform the compression test for starters. This will accurately let you know if you have an internal engine problem.
Will an autometer number 19304 tachometer work on a 20hp Kohler twin engine?
A tachometer works by measuring how many time a spark plug fires. If the tachometer is designed to determine the rpm of an 8 cylinder engine it will not show the correct speed of a 2 cylinder engine. If I remember correctly if the tachometer designed for an 8 cylinder is used on a 4 cylinder engine it will show twice the number of actual rpm. So an 8 cylinder tachometer used on a 2 cylinder engine will show 4 times the actual rpm of the 2 cylinder engine. If you check around there are special tachometers designed for 2 cylinder engines.
Where is the EGR valve located on a 1999 Mercury Cougar?
The EGR valve is a round disk like device about 43-4 inches across with a hose coming off of it on top of the engine near back right of center of engine.
You have black smoke coming from your exhaust?
You are running too rich. the mixture of fuel and air has too much fuel in it,
On a 97 deville can erg valve cause the engine to overheat?
It is possible if it was putting too much exhaust back into the engine causing it to run lean. I'd check for any computer codes for the EGR valve. They should tell you what is wrong.
How can you tell if egr is bad?
If you are talking about the EGR valve, then take a piece of rubber tubing and plug it onto the EGR valve vacuum port and using your mouth pull a suction on the tube. The valve should actuate (pull in) and if you hold it with your tongue by stopping up the end of the tubing, it should also hold it's vacuum. If it loses it's vacuum or doesn't actuate it is bad.
Engine idle problem in 1995 ford crown Victoria?
my 1993 crown vic shut off with out warning while at stop light only once in a while
How do you replace or clean an EGR valve on a 1997 Dodge Stratus 2.0 liter?
you should find the egr in the front of the motor under the throlltle , two screws hold it in place , small hands and a univeral and off it comes . to find what yours looks like you can search eBay and see a pix or in your browser type in egr and engine size . it was harder to get to egr then anything no need to remove housing , if on AOL email me and i can offer a mechanic offering free repair advice and he helped us. be sure to clean port behind egr with ice pick and vaccumm it will or maybe blocked with black carbon build up . we used a wrech and it had a twisting ten mm ? on it and used an extention on it to gain access to it. we did remove air intake and one hose for ease
How do you change the EGR valve on a 2002 Saturn SL1?
Quite easily take off the air breather tube then there is a cone shaped part with a connector on top at the back of the engine rightby the accelerator cable 2 10mm bolts hold it on take off the 2 bolts and the valve comes off
The EGR valve on a 1994 Chevy 1500 is located on the top of the engine. If the valve becomes stopped, the engine could idle rough or stall.
