wheres the fuel pressure regulator on a 91 jeep wrangler 4.0
where the fuel pressure regulator on a 91 jeep wrangler 4.0. my jeep wont start and from some suggestions i think its either the fuel pressure regulator or the fuel pump. can the fuel pressure regulator be swapped for a new one or do i have installe both the regulator and fuel pump.
It takes 10 minutes. Relieve the fuel pressure by pushing the valve on the rail. remove the vacuum line. Take out the mounting bolt. remove the old one, put the new one in. Tighten bolt and put the vacuum line back on.
Removed mine from fuel rail and discovered it was pretty clogged with little bits of black rubber. Uh oh... Ordered a new one from hesco and oops, did not seat properly. Seems my fuel rail accepts an older style fpr with a straight neck, not the newer one with a molded ring along the base. Hesco sent another one, same problem. Ended up giving to a buddy. Had to special order the correct unit from dodge dealer, ugh $$.
Replaced all fuel lines and she runs better than ever. Added an in line spin on fuel filter making filter changes a breeze
Now to resolve cold start issues and crank to cam correlation fault... It's always something