![]() ![]() It can be challenging to determine where the gas smell is coming from in a vehicle. See also: Jeep Grand Cherokee Fuel Pressure Regulator Diagnosis You may also notice black smoke coming from the tailpipe. Here’s a video on how to use a fuel pressure regulator with a fuel pressure gauge, and here’s one that uses a diagnostic scanner to look at what’s going on in the engine. Replacing the fuel pressure regulator is almost always the cure for this problem. Too much fuel will likely trigger your Jeep Grand Cherokee’s check engine light and throw the P0172 code. Too much fuel pressure can richen the air/fuel mixture, which can lead to a gas smell. If the fuel pressure regulator has gone bad, it can let too much fuel into the fuel rails. Your Grand Cherokee’s fuel pressure regulator ensures that the fuel pressure at the fuel rail is consistent. If you keep gassing after this point to top off the tank or round up to the nearest dollar (which people often do when paying cash), it can overfill the tank.Īn overfilled tank will release fuel vapor from the vent tube (which is normal) but causes your Jeep Grand Cherokee to have a bad fuel smell.īurning off the extra gas will eliminate the fuel smell in your vehicle. Modern gas pumps will fill a gas tank until they sense it is full. You can rule this out if you are consistently gassing up and smelling fuel after. If this is the case, it can make its way up into your Grand Cherokee’s cabin, and it can take a while for the smell to dissipate. If you have just your gassed vehicle up, you may have pulled somewhere where fuel was on the ground. Since the fuel inlet is behind the driver, you shouldn’t smell the smell of gas unless you are going down the road. Once that happens, it’ll begin to let fuel vapor out and into the air. The gas cap’s job is to keep the fuel vapor and fuel in the gas tank. If you see fuel on the ground under your Grand Cherokee, jump to section 5. Here are the most common things that would make your Grand Cherokee smell like gas. But there are other, less likely causes as well. ![]() It would be best to treat your vehicle as though you have a fuel leak (don’t drive it) until you know there isn’t one.Ī bad gas cap typically causes the smell of gas, the evaporative emissions system leaking, overfilling the gas tank, or an actual fuel leak. If your Jeep Grand Cherokee smells like gas, it may indicate a serious issue. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |