Originally Posted by bartel99
i'm in fresno, i replaced the glow plug relay about a year ago. are glow plugs hard to replace? whats the best way to test injectors?
i work in hollister, live in prunedale.......glow plugs are under the valve cover, as are injectors. injectors require a speciall procedure to replace, glow plugs are pretty easy as long as the heads dont break off....after the valve cover is off anyway....... the symptom you are having is really tough to diagnose without a proper scan tool....because you have to catch the injector having isues before it quits acting up.......the only way to have any chance of diaging it as it sits is if there is a code for a particular injector stored in the memory, otherwise you will either need to purchase a good scan tool, or take it to someone to have it diag'ed........sorry for the bad news......the only other way to do it is take both valve covers off......hook everything up so the motor can run, and disconect individual injectors while it is acting up.....but this is a messy procedure that isnt fullproof....but if the engine DOESNT change its running when you disconnecct and injector, they you can usually condemn that injector...........Marc