1plunk

okay, yesterday i pressure washed my engine avoiding all the important things. I moved it into my driveway and turned it off. I went out about an hour later and it wouldnt start and the engine light came on. I checked the distributor and my plugs all good. I called my buddy with a codereader and plugged it in, it wouldnt connect. i was told on here and at the parts store that the most likely culprit was the CPS. bought and replaced the CPS, tried a different PCU (ECM), checked and cleaned all electrical connections, disconnected the battery to reset the CPU, no spark at the plugs, no fuel at the rail.

before this i could hear the fuel pump spool up when i turned the key but didnt start it, now i hear nothing.

anybody have any idea what's going on? i am willing to try ANYTHING you guys come up with.

its a 99 L6 4X4

Radi

Are all the fuses and relays in the PDC intact and dry?

cmartin2112

Test your battery with a volt ohms meter make sure its still got a charge and didnt short its self.

tjwalker

This. With water intrusion, the power distribution box (black box under the hood on the passenger side) is the next place to look. Verify all relays AND fuses.

1plunk

Checked every fuse in the vehicle, and the relays in the engine bay fuse box

We recharged the battery, it isn't malfunctioning

All good

Thanks for the ideas, keep 'em rolling!

ET JEEP

You probably have water in some of the electrical connections. It may take a while for it to dry naturally. So something is shorted. A good example is your fuel pump relay/ASD relay. When you turn the key to on the PCM/ECM grounds the trigger circuit for these relays. The fuel pump then runs for a few seconds and you hear it run.

Since you hear nothing there is a fault there. If you have an air compressor blow dry the electrical connections. Some connections you may need to separate as water gets in and stays there with little air to evaporate it.

When I wash my engine I use aluminum foil to protect and seal the electrical items. These I clean by hand.

1plunk

Dried all of them, but i agree that it could be a problem with the ASD, i checked all relays, all good

1plunk

Got spark back, fuel at the rail, but very very low pressure, anybody have any ideas at all, would be great

tjwalker

For a 99, you need 49 psi, plus or minus 5 psi. Fuel pressure is produced solely by the fuel pump assembly. If you are not in spec, replace the fuel pump assembly. My favorite is Bosch, second place goes to Carter. I will not install, nor will I recommend any Airtex products.

Radi

Check the voltage at your fuel pump before replacing. You may well still have some gunk in the wiring drawing down the voltage to the pump.

1plunk

Will do, but wouldn't i hear it?

I will check it tomorrow after work

Thanks guys, keep 'em coming!

1plunk

All fixed, I'm an idiot...

freegdr

Spill it why are you a Idgit...lol...

1plunk

Okay, i believe it was the crank sensor to begin with (which we replaced), but when i checked the fuses, i put one back in the wrong spot, it just happened to be the one that keeps the ASD from engaging...

Thus i paid Goodyear $130 to tell me i had a fuse missing, at least the mechanic was sympathetic and didn't laugh at me lol

Long story short, always check your fuses... Haha

Radi

He better not be laughing. At $130 it took him approximately 1.5 hours to find it.