Hi all,
This is probably not the 1st time someone has mentioned this but my 1998 td5 70k won't start. It's cranks fine but just won't start. Apologies for the repeat in topic. I've been diagnosing the fault for ages to no avail. Firstly, I plugged in my nanocom and no faults recorded, which suggests a fuel problem.
Before I bought a fuel pressure tester gauge I took out the old fuel pump has it was a bit noisy and replaced it with an aftermarket one. From experience changing the fuel pump normally does the trick. I performed the normal purging procedure. Ignition on leave for 3 mins until fuel pump cuts out, ignition off and back on and repeat process for like 6 times. Because my td5 is an early one the press throttle down fives and wait for MIL light to flash does not apply. Still won't start but it does seem to want to. So I thought Id change the injector seals and washers with aftermarket ones. I also changed the crank position sensor. I've had experience changing the seals successfully on previous jobs. Still won't start on this TD5. Changed the fuel filter and the tiny air bleed filter in the filter housing. Bought a new battery too.
So then I decided to buy a fuel pressure tester kit and actually measure the pressure. I put together a t piece setup with my gauge and connected one end to the high pressure feed that goes to the regulator and the other end to the inlet of the regulator. Ignition on and I get 3.8bar.
I then connected my inline setup to the fuel return line before the fuel cooler and I get 1.5 bar.
I then connected the gauge to the fuel return line after the fuel cooler and again 1.5bar.
Everytime I turn the ignition on the pump squeals for a few seconds before settling down. To me suggests I have trapped air and air is getting into the fuel system.
Oil levels are fine and do not rise when cranking. So that indicates the injector seals are OK.
I've checked the fuel pipes for leaks and cannot see anything.
So lastly I recently changed the fpr and I measured the fuel pressure at the return line and got 3.5bar so I thought good it was the fpr. Then the next day I thought I'd measure it again to be sure and for some reason it measured 1.5bar again.
I'm at a lost. I've probably got a duff new pump. Fuel in tank is pass the half way mark. Red ECU plug is dry and no oil. Relays seem fine and fuses. The fuel inertia switch is fine.
Any help and suggestions would be much appreciated.
This is probably not the 1st time someone has mentioned this but my 1998 td5 70k won't start. It's cranks fine but just won't start. Apologies for the repeat in topic. I've been diagnosing the fault for ages to no avail. Firstly, I plugged in my nanocom and no faults recorded, which suggests a fuel problem.
Before I bought a fuel pressure tester gauge I took out the old fuel pump has it was a bit noisy and replaced it with an aftermarket one. From experience changing the fuel pump normally does the trick. I performed the normal purging procedure. Ignition on leave for 3 mins until fuel pump cuts out, ignition off and back on and repeat process for like 6 times. Because my td5 is an early one the press throttle down fives and wait for MIL light to flash does not apply. Still won't start but it does seem to want to. So I thought Id change the injector seals and washers with aftermarket ones. I also changed the crank position sensor. I've had experience changing the seals successfully on previous jobs. Still won't start on this TD5. Changed the fuel filter and the tiny air bleed filter in the filter housing. Bought a new battery too.
So then I decided to buy a fuel pressure tester kit and actually measure the pressure. I put together a t piece setup with my gauge and connected one end to the high pressure feed that goes to the regulator and the other end to the inlet of the regulator. Ignition on and I get 3.8bar.
I then connected my inline setup to the fuel return line before the fuel cooler and I get 1.5 bar.
I then connected the gauge to the fuel return line after the fuel cooler and again 1.5bar.
Everytime I turn the ignition on the pump squeals for a few seconds before settling down. To me suggests I have trapped air and air is getting into the fuel system.
Oil levels are fine and do not rise when cranking. So that indicates the injector seals are OK.
I've checked the fuel pipes for leaks and cannot see anything.
So lastly I recently changed the fpr and I measured the fuel pressure at the return line and got 3.5bar so I thought good it was the fpr. Then the next day I thought I'd measure it again to be sure and for some reason it measured 1.5bar again.
I'm at a lost. I've probably got a duff new pump. Fuel in tank is pass the half way mark. Red ECU plug is dry and no oil. Relays seem fine and fuses. The fuel inertia switch is fine.
Any help and suggestions would be much appreciated.