1999 jeep grand cherokee grand laredo fuel tank replacement

This fault code reads differently, depending on a car’s year, make, and model. Similar to DTC P0456, code P0455 is quite self-explanatory and does not only relate to Jeeps (despite being referred to as Jeep code P0455 by most vehicle owners). It means “Evaporative Emission Control System (EVAP) – Gross/Large Leak Detected,” read via an OBD-II diagnostic scan tool. What the P0455 Code Meansĭiagnostic Trouble Code P0455 is an error concerning an issue with your vehicle’s emission control system. More serious faults, such as a defective Leak Detection Pump or FTP sensor, sticky purge valve solenoid, or a failing PCM, can also give rise to this trouble code.Ĭontinue reading this article if you want to learn more about the causes and symptoms of a P0455 Jeep code and how to resolve them. A malfunctioning gas cap or a defective emissions control system component can cause the fault code. Symptoms include an illuminated CEL, subpar engine performance, stalling, and excessive exhaust smoke (among others). The P0455 Jeep code occurs when the PCM detects a large EVAP leak. An unattended EVAP leak can lead to hefty repair costs and poor vehicle performance. Many drivers often dismiss it due to its low drivability impact. There's plenty of room for the factory single exhaust, and the rear axle is miles away from the back of the tank, so if we ever do get a wild itch to add 1-ton axles or huge dual exhaust in this Jeep we know we won't have to make fuel tank modifications to accomplish it.Disclosure: We may get commissions for purchases made through links in this post.Ĭode P0455 is a fault code usually found in sedans, SUVs, and even luxury vehicles. But until then, we have the tank up and held in place with four of the eight mounting holes, and we're pleased to say the fit is perfect with no interference at the bottom of the floor. We'll have to drop the tank one more time to finish hooking up our fuel system after the engine swap begins, so we're going to wait until that time to hook up the filler and vent as well as welding the nuts to the inside of the frame to make install and removal much easier. Then, we pulled the tank back out and finished drilling the holes and then bolted the tank back in. Once it was up tight into place, we measured each side to make sure the tank was centered side to side and from the rear crossmember and then drilled eight small pilot holes through the frame at the center of each tank bracket.

1999 jeep grand cherokee grand laredo fuel tank replacement