99 safari won't start

JLuke · Post by **JLuke** » Tue Jan 10, 2012 12:11 am

hello there,

I have a 99 Safari that will not start on it's own. It will start with starter fluid but the dies. I have checked the injectors and they are all good, but there doesn't seem to be a pulse going to fire them. What is needed for the pulse to get to the injectors ?

Thank you,
JLuke

Smiliesafari · Post by **Smiliesafari** » Tue Jan 10, 2012 3:09 am

Welcome to the site, Luke. Have you done a fuel pressure check? Checked fuses?

LiftedAWDAstro · Post by **LiftedAWDAstro** » Tue Jan 10, 2012 3:27 am

Definitely check fuel pressure. You should hear the fuel pump run when you first cycle the key to on.

JLuke · Post by **JLuke** » Sat Jan 14, 2012 1:10 pm

have checked presser, it is good. I pulled the injectors and with everthing plugged in turned the engine over but the injectors did not spray

also checked for am injector pulse with a volt meter and got nothing !! Help Please

LiftedAWDAstro · Post by **LiftedAWDAstro** » Sat Jan 14, 2012 5:19 pm

There are ECM fuses. Check them. They fire the injectors through the ECM.

JLuke · Post by **JLuke** » Sun Jan 15, 2012 5:32 am

have checked all fuses, going to have the computer checked out today . If it is bad can you replace it with one from a junkyard ?

JLuke · Post by **JLuke** » Thu Jan 19, 2012 8:50 am

looked like water had gotten into the computer. ordered replacement, hope it works

LiftedAWDAstro · Post by **LiftedAWDAstro** » Thu Jan 19, 2012 12:48 pm

Hopefully it does work for you! Gonna suck if you have to take it to the dealer to be programmed! Keep us updated.

JLuke · Post by **JLuke** » Sun Jan 22, 2012 12:21 pm

Put in new pcm, still no start am going to go back and recheck everything. Still don't know what all is needed for injectors to fire . I know it has something to do with fuel delivery because it will fire on starter fluid !

astroturf · Post by **astroturf** » Sun Jan 22, 2012 12:34 pm

What is your fuel pressure?

Post by **MountainManJoe** » Sun Jan 22, 2012 1:13 pm

bad wiring?

Do you have the injectors or poppet valves? How did you test them?

JLuke · Post by **JLuke** » Wed Jan 25, 2012 11:06 am

was finely able to test the actual fuel pressure with a brand new tester. ( had used a borrowed one before ) . shows about 38 lbs. key on, ( of coarse engine off ). will be ordering an new fuel pump today !

JLuke · Post by **JLuke** » Sun Jan 29, 2012 8:41 pm

put in new fuel pump, now it sounds like it wants to try to start but won't, bad fuel ? ( had about 3 gal left, in tank, only had enough cans for 15 gal. was full didn't want to pour onto ground )

Post by **MountainManJoe** » Sun Jan 29, 2012 11:48 pm

If the VCM is replaced and the signal isn't getting to the injectors, then use your volt meter and trace the wires all the way back and see where it's disappearing. The injectors connect directly to C2 on the VCM.

astroturf · Post by **astroturf** » Mon Jan 30, 2012 12:10 am

New Pump Pressure Is?

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99 safari won't start

99 safari won't start

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