Located smack dab on your car's intake manifold, an EGR [Exhaust Gas Recirculation] valve functions by sending exhaust gas back into the combustion chamber as 'exhausted air' is much hotter than intake air. By bringing warmer gas into the combustion chamber, your engine operates much more cleanly and efficiently.
Like any part, your Ford EGR valve or Toyota EGR valve is subject to getting clogged with dirt or crud. A clogged unit may cause your car to stall, hesitate, or idle roughly. Sometimes, simply cleaning the EGR valve with a product like STP carburetor cleaner will resolve the problem. Still, if you take your car in for its MV inspection and the diagnostic tests shows that your EGR valve is not working, you will fail inspection and be forced to swap out the device before bringing your car back in for a follow up inspection. What a hassle, but something you just don't want to forget about.
Prices on replacement EGR valves are all over the place: some parts are reasonably priced while others will cost you a mint. Your Ford or Toyota dealer will charge you a mint if you purchase one through their parts department, as buying through any dealer can quickly turn into a financial nightmare. Instead of going through all that aggravation, you can save big money by shopping online through a quality wholesaler such as All EGR Valves. As is common with all high quality auto parts wholesalers, you can purchase an EGR valve at a huge discount and save a bundle over dealer mark up prices. Leading wholesalers deal directly with manufacturers, buy in gigantic quantities, negotiate the lowest prices, and pass big savings on to you.
Replacing an EGR valve is a simple process and can be accomplished with standard automobile tools. With your handy Chilton repair manual at your side, you will quickly remove and replace the device and have a strong sense of accomplishment on a job 'well done.' Best yet, you will have saved yourself plenty of money which you can use for other parts, like the K&B cold air intake that you always wanted!