1999 Jeep Grand Cherokee "clean 99 oil" Questions

99 jeep grand cherokee 4.7 v8 oil pressure drops from 40 at idle to 0 when given rpms. Will come right back to 40 when you let idle again. I have removed pan and checked screen. It was clean. Original

99 jeep grand cherokee 4.7 v8 oil pressure drops from 40 at idle to 0 when given rpms. Will come right back to 40 when you let idle again. I have removed pan and checked screen. It was clean. Original

99 Jeep Grand Cherokee 4.7 Oil Pressure reads 40 PSI at Idle and drops to 0 at higher rpms. I just changed the Oil Pressure sender/ Same Problem If you got the same oil pressure reading with the new ...

...99 Jeep Grand Cherokee 4.7 oil pressure reads 40 at idle and drops to 0 when given rpms. Pull pan screen was clean. Noticed oil sending unit was leaking, I replaced it. I still have the same problem. ...

...99% of the time the pump isn't bad. Oil pressure loss is most associated with pressure bleed off at the crankshaft rod and main bearings due to wear. The pump is the first thing that gets oil and the ...

...clean. no oil presure when you stop. i have replaced the oil presure sending unit and the oil pump. any advice . i also replaced the cooling fan water pump. it is not over heating now.but still loses ...

...99 toyota 4runner w/ same problem...changed oxygen sensor--wasn't it...cleaned mass air flow sensor wasn't it..checked all vacuum hoses, etc..still nothing...went back to the mass air flow ...

99 Jeep GC Laredo I have a 1999 Jeep Grand Cherokee Laredo, with the inline 6. A few days ago the air conditioner just stopped working inside the car. The lines running from the condenser to fire wall

...99. with 5sp, all with that. my 08 JK same. the fuel filters on old loop systems is in the front of the tank then later, , EPA forced most parts into tank with the new loop or dead head systems. (EPA ...

99 jeep grand cherokee oil pressure gauge drop Idles at 40 lbs pressure give it some rpm and it goes to 0 lbs. Pulled pan, screen is clean.Hooked up another gauge to block. Engine has good oil ...