Starting issue with Mk6 transit. Immobiliser or starter?

[AlexPGA1992]

Hi all,

I've been looking over this forum for a while but never signed up...until now!

We have a MK6 transit that has been converted to our camper which we love but she is showing her age now. We had a MOT fail on some welding work so we are waiting on a quote to see if she is salvageable. After the MOT, the van wouldn't start anymore. There was almost an electric start on the key turn but no crank. It was recovered and the guy said it was the starter motor, after having a quick look. When I was brought back to me, I ran it though our OBD2 and have three fault codes

P1664 (injection pump control module malfunction) P1564 (injection pump control module requesting reduced fuelling) and PCM isn't communicating with the PATS ( sorry I lost the code). We haven't had this issue before so it's a little confusing. When I clear the codes, both fuel pumps come back and only when I try to start the engine the PCM communication with PATS shows them.

First time you try to start the van, the little red triangle turns off after a few seconds, but on the second time, it was flash quickly for probably a minute or so. I only have 1 key so I can't check if that's the problem

Any suggestions what is best to try and do first or any suggestions what could be wrong?

Thanks

[T350camper]

I assume the welding has not yet been done? Fault codes can be misleading, especially if there's a battery issue as this will generate lots of DTC's due to voltage drop. First port of call before getting flustered would be to confirm the battery health by attaching quality jump leads to a strong battery.

Next, try the ignition switch (the electric rotating switch on the back of the barrel). They are a known fault and cheap to buy on fleabay.

Does the engine crank at all now? Is there a clicking sound or anything else you can describe?

[knobby1]

Hi all,

I've been looking over this forum for a while but never signed up...until now!

We have a MK6 transit that has been converted to our camper which we love but she is showing her age now. We had a MOT fail on some welding work so we are waiting on a quote to see if she is salvageable. After the MOT, the van wouldn't start anymore. There was almost an electric start on the key turn but no crank. It was recovered and the guy said it was the starter motor, after having a quick look. When I was brought back to me, I ran it though our OBD2 and have three fault codes

P1664 (injection pump control module malfunction) P1564 (injection pump control module requesting reduced fuelling) and PCM isn't communicating with the PATS ( sorry I lost the code). We haven't had this issue before so it's a little confusing. When I clear the codes, both fuel pumps come back and only when I try to start the engine the PCM communication with PATS shows them.

First time you try to start the van, the little red triangle turns off after a few seconds, but on the second time, it was flash quickly for probably a minute or so. I only have 1 key so I can't check if that's the problem

Any suggestions what is best to try and do first or any suggestions what could be wrong?

Thanks

You mentioned "both" fuel pumps, the Mk6 TDDi only has one fuel pump. Or am I misunderstanding you..??

P1664 & P1564 points to a failed fuel pump EDC...very common. Check the wiring to the fuel pump, they can often break inside the trunking.

Lord Knobrot (Smithy)

[AlexPGA1992]

I assume the welding has not yet been done? Fault codes can be misleading, especially if there's a battery issue as this will generate lots of DTC's due to voltage drop. First port of call before getting flustered would be to confirm the battery health by attaching quality jump leads to a strong battery.

Next, try the ignition switch (the electric rotating switch on the back of the barrel). They are a known fault and cheap to buy on fleabay.

Does the engine crank at all now? Is there a clicking sound or anything else you can describe?

Thanks for the reply. We have recently replaced both batteries but I'll get it hooked up and try to jump it and see if that helps anyway. Is there a way to know if the ignition switch has gone or is just a case of buying one and replacing it.

As if now, the engine still doesn't crank and the starter motor that did click, now doesn't and there is no noise at all. We still have all the electrics and the same 3 fault codes. Also still have the same issue with the red triangle flashing on the second time of trying to start her up.

Thanks again for the help, I appreciate it

[AlexPGA1992]

Hi all,

I've been looking over this forum for a while but never signed up...until now!

We have a MK6 transit that has been converted to our camper which we love but she is showing her age now. We had a MOT fail on some welding work so we are waiting on a quote to see if she is salvageable. After the MOT, the van wouldn't start anymore. There was almost an electric start on the key turn but no crank. It was recovered and the guy said it was the starter motor, after having a quick look. When I was brought back to me, I ran it though our OBD2 and have three fault codes

P1664 (injection pump control module malfunction) P1564 (injection pump control module requesting reduced fuelling) and PCM isn't communicating with the PATS ( sorry I lost the code). We haven't had this issue before so it's a little confusing. When I clear the codes, both fuel pumps come back and only when I try to start the engine the PCM communication with PATS shows them.

First time you try to start the van, the little red triangle turns off after a few seconds, but on the second time, it was flash quickly for probably a minute or so. I only have 1 key so I can't check if that's the problem

Any suggestions what is best to try and do first or any suggestions what could be wrong?

Thanks

You mentioned "both" fuel pumps, the Mk6 TDDi only has one fuel pump. Or am I misunderstanding you..??

P1664 & P1564 points to a failed fuel pump EDC...very common. Check the wiring to the fuel pump, they can often break inside the trunking.

Lord Knobrot (Smithy)

Sorry that's my fault, I meant both fault codes for the fuel pump come back, not multiple fuel pumps.

I'll have a look at the wiring once the rain stops and see if there is anything there.

Thanks again

[T350camper]

Okay. If the starter is not cranking or the solenoid even clicking, then start there. A few basics like good connections on the battery, the earth cables, the starter cables etc... Is there full battery power to the starter main cable and then to the solenoid wire when the key is turned to crank? Have you tried tapping the solenoid while the key is turned to see if it provokes some action?

You can eliminate a few things with simple jump leads. Put one between the engine and a good clean earth anywhere on the body. This will act as an engine earth lead. Does it make a difference? You can do the same thing between the battery negative terminal and a good earth to check that.

A good set of jump leads from a strong battery will help diagnose if you simply have a battery problem (although even a weak one would normally make the solenoid click). Do you get ignition lights or any vehicle electrics? If not then the earth lead from the battery may have failed. They are designed to blow in case of overload.

Do NOT be tempted to push or tow start a Transit... a world of pain awaits anyone who tries if the timing chain jumps!

If you start there and let us know the results, it will help. Good luck.

[AlexPGA1992]

Okay. If the starter is not cranking or the solenoid even clicking, then start there. A few basics like good connections on the battery, the earth cables, the starter cables etc... Is there full battery power to the starter main cable and then to the solenoid wire when the key is turned to crank? Have you tried tapping the solenoid while the key is turned to see if it provokes some action?

You can eliminate a few things with simple jump leads. Put one between the engine and a good clean earth anywhere on the body. This will act as an engine earth lead. Does it make a difference? You can do the same thing between the battery negative terminal and a good earth to check that.

A good set of jump leads from a strong battery will help diagnose if you simply have a battery problem (although even a weak one would normally make the solenoid click). Do you get ignition lights or any vehicle electrics? If not then the earth lead from the battery may have failed. They are designed to blow in case of overload.

Do NOT be tempted to push or tow start a Transit... a world of pain awaits anyone who tries if the timing chain jumps!

If you start there and let us know the results, it will help. Good luck.

Appreciate it again, I'll run the tests when the weather improves, whenever that is. Just to let you know all the vehicle electrics work and I do have all the ignition lights, just no fire. I think the recovery guy did test the battery output and it was holding 12v and I'm sure he ran it against the starter and he said it was ok, but unsure. At the time he didn't give the starter a knock as he couldn't get to it.

Thanks again for your help