Good day, and God bless the admin of this great forum, i am in serious trouble, i have a grand cherokee since 1 year ago, its diesel, The started about 3weeks ago, its all started like this, if am accelerating,its would get to a stage, were the acelleration would seize a little before its would continue accelerating, I complained to my engineer, he said there is no issue, but me i know that something is wrong, little by little the problem starts increasing, that is assuming the car is just parked at home and i intended to raised the trettle while Gear is on P, its would raise fine and suddenly the engine will just go off, then i have a to wait a little seconds/min before the engine will start for me again, i found it so difficult to take the vehicle to the engineer, because its kept embarrassing me one the way by offing on the road, and then i have to wait for engine to cool, and the start again and accellerate, after small time, its would still off, and i will still wait for engine to cool a little, and then i would start and accelerate. this was how i got to the engineer workshop, the diesel mechanic have tried to check the mechanical aspect,but he said the mechanical side is okay, and that its was electrical issues which he cannot detect, now we invited an electrician, and the electrician said its was mechanical issues, please i need help, according to my mechanic, he said the current goes on and off, thats why the car would off... please i need help. Can someone help me please, at the initial stage, they wanted to use computer, but the computer will not communicate with system, its displays no data found. please i need your assistance, since no one is able to detect the fault and fix the problem, I decided to search the internet for an expert who many give a clue of the issues. please i beg you all in the name of God, i am in Nigeria, the car is a sweet car until he started stressing me. please...... please please please help me.

 

Welcome to the wrong forum!


A Grand Cherokee is not a Cherokee. Your forum is over here.


And stop groveling! This forum is here to provide help. Begging is not needed and not appreciated.

 

why are you been sacastic? must you use the word grovelling before u correct me? am new here, so if i had posted in the wrong place, as you have adviced me, i have heard.

 

Welcome Chief! I found your post in the right place. It must have been moved by a moderator.

The major problem we have is too many people honestly don't know what they are driving! We also don't know too much about diesels because they weren't sold in the US until just recently.

Your problem sounds just like a failing Crankshaft Position Sensor which we have on petrol engines. This is a magnetic switch on the bellhousing that tells the onboard computer what the engine is doing as far as rpm and helps it adjust fuel injector timing and other data. If the computer looses this signal, it just shuts off the engine. When it's failing, it seldom sets a Check Engine Light or trouble code until it fails completely. The first thing I'd check is the wire harness going to it for burnt or frayed wires or melted connectors. You can also check the computer for loose plugs or corrosion on the pins.

This is just a place to start and about all I know about the electronics involved with your diesel.

 

2001 WJ Diesel will be an Italian VM 5-cylinder 3.1 turbocharged engine - only sold in Europe, South Africa & South America.

 

Hi & welcome Chief 2011. If I understand the problem, the engine will not stay running. Once a diesel starts running the only thing that can turn it off is a lack of fuel. Either the fuel is not getting to the injectors, or the injectors are not squirting fuel into the cylinders at the correct time. Have your engineer (we call them mechanics) verify that the fuel is getting to the injectors, and if yes, then verify that the injectors are injecting at the correct time.

If the fuel is not getting to the injectors, start simple - replace the fuel filter or filters. Sometimes there are two. Have your engineer replace the filter(s) and bleed the system. If the engine starts, let it run for 10-15 minutes to make sure the air is out of the system.

If the engine does not start and the injectors are not getting fuel, have your engineer check the fuel pump. It may be malfunctioning.

If the fuel injectors are getting fuel but not injecting - you have an electrical issue (for example a malfunctioning computer or sensor) or a malfunctioning injector(s). If the injectors are getting fuel and injecting, then have the engineer check the timing of the injection.

Before you start this troubleshooting or diagnostics, please make sure you have good clean diesel fuel. Water or junk in the fuel will prevent the engine from running. Older mechanical diesels will tolerate some dirty fuel, but electronically controlled diesels will not.

Good luck!