The service engine light came on in our car this morning after getting gas so we thought it was just the gas cap but took it to auto zone to be sure. They said it was an egr or ezr (not sure which) valve and sensor and that it may just need sprayed with wd40 to get it to open up and if not and has to be replaced its a $170 part. Is my car still drivable for the time being until we can figure out how we‘re going to potentially come up with $200?? My husband drives our car 100 miles a day to and from work so please use that in saying whether or not its driveable.
it's not the egr valve. the light came on after putting fuel? replace the fuel cap auto zone's are known for making you spend money hoping you will buy the part from them. also an egr valve code is common on gm vehicles. unless its running rough, I wouldnt worry about it. all it does it allow the car to reburn the exaust. (exaust recirculation valve). after you replace the fuel cap, the car will need to be driven about 60 miles for the computer to reset the emission system and the light to go off.
Go ahead and drive it. The egr valve controls emissions, and shouldn't hurt the engine. Good luck.
the egr dilutes the mixture in the engine and this lowers the temperature in the cylinders if you notice any pinging sounds under load this is how damage to your engine can occur if it sounds ok you should be safe driving it until it is fixed. no promise. good luck.
