Are the injectors leaking?
So.....all of a sudden the ranger is starting right away like it used to, just a few cranks and starts right up, even in the morning?? The only thing different is I added some antifreeze which was low when I opened the rad cap, but still had a high level in the overflow. Maybe I need a new rad cap. But the fuel pressure gauge still shows the same as before, not holding pressure.
I did what was suggested in reading other posts to tell if fuel injectors are leaking. First I let the truck run, turned it off, and then started it again and started right up. Then I turned the key on, put the pedal to the floor and turned it over for a long time but wouldn't start. Turned key of. Then started engine and started right away. Now I turned just the key on 8 times to build up the pressure. Kept the pedal to the floor and turned it over and it started right away. I did this three times just to make sure. So according to what I read the injectors must be leaking when I turn the key on and that is why it started. Sounds reasonable. But...... I tried something a little different. I turned the key on and this time used a jumper at the test block to ground the fuel pump and make it run. I did this 8 times building the pressure to 40 and shutting it off and watching ther pressure drop immediately. Shut the key off then turned key on again. Put the pedal to the floor and cranked the engine for a long time and it would not start. I tried this three times and still it would not start. So I am confused.
Is there something happening differently when I am just using the key on to build up pressure that activates the fuel injectors and when I just build up the pressure jumping the pump that doesn't activate the injectors. Is there something wrong electrically here or is this normal??
Edit/Delete Message Reply With Quote Multi-Quote This Message