Do compression test first. Have you got a blocked air intake? Sometimes people put a rag over the intake tube inlet when blowing outthe air box & forget it & it gets sucked in & blocks airflow. The things I think of are straight away are Spark, Fuel, Fuel pressure, Air, Timeing, Compression
SOURCE: 96 jeep grand cherokee 4.0
change the computer .... PCM get a used one it fixed mine had same problem
SOURCE: 1993 Jeep Grand Cherokee Fuel Gauge not working
There could be two problems here:
1. That buoy floating tank is not working properly
2. That the electrical system that fails to submit the dashboard.
Review this information:
- ZJ-Secc-8E-Instrument-Cluster-and-Gauges
Page 2 - Fuel Gauges description
Page 4 - Voltimeter/Tachometer/Fuel Gauge/Low Fuel Inoperative
Page 10 - Specifications
- ZJ-Secc-14-Fuel-System
About Fuel Tank components
- ZJ-Secc-8W-Wiring-Diagrams
Fuel Tank and Gauge & Sensor Units Sending (Page 93 and next)
Good luck... and remember rated this help.
SOURCE: how to replace timing cover gasket on a '97 jeep grand cherokee
Pull the alternator brackets and front engine brackets off until you get to the water pump. You will also need to remove the fan shroud and then the fan. Remove the water pump and then you will see an aluminum cover and that will be your timing cover. remove the cover and clean all the gasket off the engine and the cover. use a razor blade, and make sure there in no oil or grease on the parts where the gasket lies. Put your gasket on, bolt the cover back on with the new gasket and repeat the teardown process in reverse.
SOURCE: my 1993 jeep cherokee will not start, fuel
i wouldn't suspect the timing, as long as the timing chain hasn't jumped, one way you can find out if the timing is off, is to take the distributor cover off and with a piece of white chalk or a marker, place a mark on the outside area of the distributor housing, of where the # 1 firing postion is on the cap, then take the chalk and make a line in the grove of the timing mark that is located onto the harmonic balancer, also mark the 0 degree area on the timing tab right above the balancer, and have someone to crank the engine over slow to bring the # 1 firing cylinder up on its firing stroke, you can also remove the # 1 spark plug , and with a light watch for the piston to come up on the compression stroke, when this is done, the tip of the rotor should be pointing at the # 1 firing position, and the line on the harmonic balancer shpuld be lined up onto the # 0 degree mark on the balancer, if you have done this right , it should be 0 degrees, if it is not on the 0 degree mark, timing chain might have slipped due to slack in it, and this happens on engines with high mileage, you said that the fuel compression was good, so i suspect that you gave the jeep a fuel pressure test to see if it was getting fuel, if you got fuel to the carb, then i would check the fuse box area under the hood on the drivers side, it is a black box, check the start relay switch. i hope that this information has been helpful to you.
Hello! There is a sensor ground wire ...Color is Black/Light Blue (pin#4 of a 22 pin connector on the PCM which is sensor ground...That is the same wire multiple that feeds ground to the fuel pump unit (a variable resistor that senses whether the tank is full or empty)...When the vehicle heats up this ground which is more than likely corroded or rusted becomes resistive and opens...The vehicle has some years on it and it's not uncommon for ground straps to rust through,,,The gauge drops to empty...This tells the system; "I'm out of gas" and Sets the fuel level sensor signal to the PCM shutting down the engine...
Your going to need a multimeter (preferably digital) and a wee bit of experience using it...If your not up to this just send a comment and you can then take it to a mechanic and describe the problem specifically...
If you have a meter ( home improvement stores sell them for under $20)...Here are a couple of test procedures to narrow down and solve the problem...
There is a four wire connector that comes out of the top of the gas tank that may be to difficult to reach...Wire colors are...Black...Dark Green/Black...Black/Light Blue and...Light Blue/Yellow...The wire you are interested in is the "Black/Light Blue"...This is a chassis ground wire...There should be Ground straps on the frame...With the meter set on X10 ohms scale... Search under the vehicle for that section of wire harness comming out of the top of the gas tank that contains the above mentioned colors...When you find it ...push the point of a safety pin into the Black/Light Blue wire...Clip one meter probe to it and the other probe to bare metal chassis ground...Or make that probe wire long enough to touch the negative battery post...You must read zero ohms or very close to it...Record reading...Next clip one probe to bare metal chassis ground (a bare fender or firewall bolt...The other to the center of the negative battery post...Meter set the same...Record reading...Next move from chassis ground to the engine block (bare metal)...Record reading...Send results to Saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
181 views
Usually answered in minutes!
×