Freelander2 usually when towing in slow moving traffic oŕ stationary foŕ a while the engine power drops and will not go above 40mph until in free moving traffic for a couple of miles and all returns to normal, no warning lights or raised temperature gauge, wether coincidence or not has only occurred after service and fuel filter change
saxavordian
Well-Known Member
Best place to start is with a diagnosis tool.
Nodge68
Well-Known Member
This is a common issue if an aftermarket fuel filter is fitted.
Use only genuine fuel filters, or OE filters that have the word Perflux molded into the top.
The reason an aftermarket filter causes this is pretty simple. The fuel filter on these vehicles is supposed to have a thermostat in it, which supplies fuel fresh cold fuel from the tank when the engine is hot, or recycles warm fuel from the rail overspill when the engine is cold. If an aftermarket filter doesn't have the thermostat, then a majority of the fuel going to the engine is recycled and hot. The ECM then limits power, by reducing pump pressure to avoid damage, hence power drops off.
There's nothing actually wrong with the engine or the ECM, so no warnings are given, its just a safety routine which is only supposed to be implemented in extremely hot conditions, but a low quality filter allows the safety routine to be activated unnecessarily early.
Use only genuine fuel filters, or OE filters that have the word Perflux molded into the top.
The reason an aftermarket filter causes this is pretty simple. The fuel filter on these vehicles is supposed to have a thermostat in it, which supplies fuel fresh cold fuel from the tank when the engine is hot, or recycles warm fuel from the rail overspill when the engine is cold. If an aftermarket filter doesn't have the thermostat, then a majority of the fuel going to the engine is recycled and hot. The ECM then limits power, by reducing pump pressure to avoid damage, hence power drops off.
There's nothing actually wrong with the engine or the ECM, so no warnings are given, its just a safety routine which is only supposed to be implemented in extremely hot conditions, but a low quality filter allows the safety routine to be activated unnecessarily early.
Diagnosis showed no faults
saxavordian
Well-Known Member
I wouldn't blame yourself
Nodge68 give you good advice here as we all admire his knowledge.
Nodge68
Well-Known Member
Hi fuel temperature safe mode doesn't log a code. Fit a genuine fuel filter and the problem will go away.
Thanks, genuine filter ordered
Nodge68
Well-Known Member
Make sure you know how to prime the filter properly, or it won't start after the change.
Arctic2
Well-Known Member
Use one of these below to prime the good filter.
1
2
