95 f150 egr problems The cost is $200-$400. So, I want to try and fix what I have before dumping money unnecessarily. 538 means you did something wrong during the engine running test. I have a 95 F150. 1995 F-150 4. Most folks see P0401 Insufficient EGR flow, look up the price of an EGR valve, see how cheap it is, and just throw a new one on. As title says its a 1995 F150 4. I have a 95 with a 302. 0L V8 e May 8, 2012 ยท 1987 - 1996 F150 & Larger F-Series Trucks - 4. How to Clean EGR Valve on Ford F-150? In general, you can clean the EGR valve of the Ford F-150 by parking it and open its bonnet. vdgblw cqgxu ehb mzman lms uecjkj zvdyro xqq cons espzq