TD5 lack of power, slow to rev

**Graeme** · 2nd February 2025, 04:35 PM

I made the mistake of removing the fuel temperature sensor to check fuel pressure using a gauge on a friend's that was behaving as you described Shack. It didn't run at all after that as the tank pump wasn't operating.

**Tins** · 2nd February 2025, 04:48 PM

Interesting idea about the fuel pump. Never thought of that.

As the head has been off, what about the FPR? I dunno, just a thought.

**nakedbarra** · 3rd February 2025, 05:36 AM

So I found a local guy with a nanocom and we cleared codes and after a drive it got a little better but still not there yet, any TD5 mechanic's in the Newcastle area?
Map and Maf replaced, wastegate rod is good.
Its better but I will still keep working on it

**shack** · 3rd February 2025, 06:22 AM

Originally Posted by nakedbarra

So I found a local guy with a nanocom and we cleared codes and after a drive it got a little better but still not there yet, any TD5 mechanic's in the Newcastle area?
Map and Maf replaced, wastegate rod is good.
Its better but I will still keep working on it

Did you record a log while driving?

**nakedbarra** · 3rd February 2025, 04:41 PM

No We didnt, I am thinking it could be the pump either failing or diesel sludge as a the truck has sat for long periods between driving by the previous owner

**Tins** · 3rd February 2025, 05:15 PM

Originally Posted by nakedbarra

No We didnt, I am thinking it could be the pump either failing or diesel sludge as a the truck has sat for long periods between driving by the previous owner

Hmm.. Where you are it can get cold ( duh ), and damp. The fuel could be suss, so the filter could be clogged, and the pickup screen too. Worth a look.

**DazzaTD5** · 4th February 2025, 05:55 PM

I'm with 2 others in saying fuel pump, if it was a D2 TD5 it would be a given, for some reason Defender TD5 fuel pump failures are rare...

**shack** · 5th February 2025, 06:58 AM

Originally Posted by DazzaTD5

I'm with 2 others in saying fuel pump, if it was a D2 TD5 it would be a given, for some reason Defender TD5 fuel pump failures are rare...

That would no doubt be due to the superior engineering and attention to detail given to every Defender before they had to push it off the assembly line.

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