2001 Jeep Cherokee Fuel pressure issue and fuel in oil

EMARANGE

MEMBER
2001 JEEP CHEROKEE
6 CYL
4WD
AUTOMATIC
123,000 MILES

First the engine runs fine. I noticed the smell of fuel last time I changed the oil. I also noticed a slight drop in gas mileage. I hooked a pressure gage to the fuel rail and noticed the pressure dropped after I turned the engine off from about 50PSI to 10PSI. I removed the fuel injectors still conneccted to the fuel rail and turned the truck on but not cranking to see if they are leaking and they are not. I also have a large EVAP leak code all lines and fittings look good haven't looked any deeper on the EVAP.

Sunday, August 2nd, 2009 AT 5:11 PM

3 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Hi
Can you post EVAP code?

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Monday, August 3rd, 2009 AT 12:54 PM

EMARANGE

MEMBER
2 POSTS

I did not get the exact code but the guy told me it was a EVAP large leak an EVAP small leak and EVAP medium leak.

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Monday, August 3rd, 2009 AT 6:51 PM

DOCFIXIT

MECHANIC
18,828 POSTS

Think fuel inoil is from EVAP leak. You have a mechanical pressure regulator which is incorporated with fuel module. When power is cut it drops pressure but maintance residule pressure in line.The testing for EVAP requires a scanner and special pressure test equipment. You can check tank cap tight sealed also take a look at diagrams see if you can find leak.