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The Fox



Member Since: 24 Mar 2014
Location: Shrewsbury
Posts: 94
United Kingdom 2014 Defender 90 Puma 2.2 XS CSW Corris Grey
I'm thinking that's the next logical step too - wish I hadn't just brimmed the tank!

... doesn't explain why it's worse in the wet though...

I thought the 2.4 didn't have a lifter pump in the tank and uses quite a different fuel pumping system?
Post #865333 4th Nov 2020 8:28am
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HardCharger



Member Since: 03 Mar 2013
Location: Manila
Posts: 740
Philippines 2011 Defender 110 Puma 2.4 SW Stornoway Grey
Yes, the 2.4 doesn’t have a pump at the pick up assembly and depends on the fuel pump to get things going. I was going off the thread title stating this was a problem with a 2.2 unit.

As for problems in the wet, like I mentioned, maybe the connections weren’t securely re-connected from the last time you brought down the tank. Or, it could already wear and tear of your current pick up & pump unit
Post #865476 5th Nov 2020 5:42am
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The Fox



Member Since: 24 Mar 2014
Location: Shrewsbury
Posts: 94
United Kingdom 2014 Defender 90 Puma 2.2 XS CSW Corris Grey
MIL back on again this morning - it's been raining here so I could have bet my house on it. The wet weather is now 90% of the cause of this problem, whatever it is.

Out of interest - I get a TC (traction control) light when I get the MIL too. Is this common and a red-herring or is the TC a potential avenue for investigation?
Post #870394 30th Nov 2020 8:17am
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The Fox



Member Since: 24 Mar 2014
Location: Shrewsbury
Posts: 94
United Kingdom 2014 Defender 90 Puma 2.2 XS CSW Corris Grey
****** IT'S FIXED *******

Kudos to Roean Land Rover in Telford - Gary the head mechanic in particular. He found the problem, and it's nothing I'd have found myself or has been suggested, so we're all vindicated!!

The wiring loom runs through the bulkhead and over the top of the gearbox in the transmission tunnel, outside of the tub. The loom had come loose from it's retaining fixings and had rubbed against the gearbox body and the underside of the tub, wearing through to raw wires which were grounding out when it touched the gearbox or when water got in the way.

Check your looms, people!
Post #875077 29th Dec 2020 5:50pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324
United Kingdom 
That's good news. These sorts of faults can be very frustrating. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #875141 29th Dec 2020 10:37pm
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Rodo68



Member Since: 29 Nov 2020
Location: Santiago
Posts: 6
Chile 2009 Defender 130 Puma 2.4 HCPU Stornoway Grey
Re: Help! Surging power in 2.2
The Fox wrote:
Under constant throttle (usually cruising on main road or similar) my defender had started to “surge”. Every few minutes of so, the throttle feels like it’s opening and closing or there’s a misfire. After 1-3 seconds of this, it stops and power returns to whatever it should be.

It’s quite sporadic, but it’s never happened under hard acceleration, but then again I spend more time cruising than accelerating so that might be a red herring.

Any ideas?

Hi.
I Change the sensor valve SCV, the fuel dirt the valve
Regard
Post #878098 12th Jan 2021 11:13pm
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