2000 Jeep Grand Cherokee Repair Question
Topics covered: Sensor, Broken bolt, Compression.
Mileage: No information provided.
Mileage: No information provided.
Asked on October 9, 2012
00 jeep grand cherokee multiple/random misfire and stalls
Please help
Got an 00 jeep grand Cherokee 4.7 v8
It is throwing p1756 p0300 and at least 3 diffrent misfire codes for cylinders always different and every cylinder has been pulled
First i noticed really bad exhaust manifold leak causen the H02 sensors reading unmetered air. Extracted the broken bolts
Nothing still doing it
Did compression test getting. 90 - 100 all away around
replaced cam and crank sensors
Still nothing
Any ideas whay it might be
Got an 00 jeep grand Cherokee 4.7 v8
It is throwing p1756 p0300 and at least 3 diffrent misfire codes for cylinders always different and every cylinder has been pulled
First i noticed really bad exhaust manifold leak causen the H02 sensors reading unmetered air. Extracted the broken bolts
Nothing still doing it
Did compression test getting. 90 - 100 all away around
replaced cam and crank sensors
Still nothing
Any ideas whay it might be
Asked by danielwalker-petersAnswer
Replied on October 9, 2012
what about the basics, like plugs and coil??
90-100 is low for that motor.
vacuum leaks?? injectors?? wiring to injectors??
Roy
Replied on October 9, 2012
Plugs replaced about 6 months ago along with coils
no vacuum keaks that i can tell wires for injectors look fine
fuel pressure is with in specs to the manual
Replied on October 10, 2012
did you have the injectors professionally cleaned?? not an additie but a real direct injection cleaning??
Roy
Replied on October 10, 2012
No was going to hook up it tomorrow
also 1x1 ho2 sensor is bouncing from. .00 to .8 rapidly would and o2 sensor cause this and not though any codes
Replied on October 10, 2012
it is working normally and will not cause this code.
Roy