Went out to the garage to start my 89 Comanche yesterday. The 4.0
cranked over fine, but it took longer than usual to start. I was
beginning to think it wasn't going to start when it finally started
up. I drove the two miles to work and shut it down. Started fine
when I went to the bank 30 minutes later, and started up just fine
again when I left the bank. Got ready to come home last night, and all
it would do is crank. It had been 45 degrees all day with a blowing
light rain. I went back up last night to try and shoot some ether in it, thinking maybe it would start and I could get it home and in the
garage to work on it. However, I could not get it to even hit on
ether. I tried spraying it above the air filter to make sure it would
suck it into the intake as well.
I changed the cap and rotor, along with all six plugs and wires about
three months ago when I gave it a good tune-up. I put a set of Ford 19
lb injectors in it earlier this year. The MJ has about 185,000 miles on it. I changed out the cps about 4 years ago when it left me stranded one night.
I changed out the fuel pump with one from NAPA two years ago. I can
hear the fuel pump run and cycle like it should.
Once the Jeep started yesterday, it ran just fine. Any ideas?
Plans are to take a timing light up with me today and see if there
is any spark at the plugs.