↓ Advertise on Defender2 ↓

Home > Puma (Tdci) > Low power in 6th gear
Post Reply  Down to end
Page 2 of 2 <12
Print this entire topic · 
happycar



Member Since: 06 Dec 2022
Location: gouda
Posts: 1
Netherlands 2007 Defender 130 Puma 2.4 HCPU Java Black
Low power in 6th gear
Hi,
My defender td4 puma has a similar problem. Good power and rev pick up in gear 1 to 5. Changing gear from 5 to 6 the rev drop from 3000 rpm to 2000 rpm and stay there. It takes forever to rev. up. to 2500 rpm.
Feels like the car almost stops changing from 5 to 6.

All this happened after the engine was rebuilt, new vgt turbo installed and new remap (BAS remap, BAS hybrid turbo).

MAF, MAP, all sensor are good. BAS and my mechanic don't have an explanation. Spent over 15K for the engine rebuilt and end up with a car that's dangerous to drive on the motorway.

Does anyone have what could be the cause of this or have a solution to this problem.
Post #975765 26th Dec 2022 4:48pm
View user's profile Send private message View poster's gallery Reply with quote
nicolas0505



Member Since: 23 Dec 2020
Location: briançon
Posts: 79
France 
my defender puma 90 2.4 does the same in 6th gear when I press the accelerator pedal below 2000 it's as if I'm accelerating in a vacuum. but I think I have found the problem it is a lack of fuel tank clogged for the moment I have sent injector cleaner, antibacterial water dispersant several times, I have an improvement but not completely I must still have dirt in the tank I also changed the fuel filter several times but the best would be to drop the tank to clean it
Post #976259 1st Jan 2023 12:36pm
View user's profile Send private message View poster's gallery Reply with quote
custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20376
United Kingdom 
Failing VCV does this. $W33T $0U7H3RN $UG4R
🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇺🇸⛽️🛢️⚙️🧰💪
Post #976324 1st Jan 2023 9:51pm
View user's profile Send private message View poster's gallery Reply with quote
JakkalsOO



Member Since: 15 Mar 2023
Location: Kempton Park
Posts: 4
South Africa 2003 Defender 110 Td5 DCPU Caledonian Blue
Has any one been able to resolve the low power in 6th gear issue?

I have replaced the VCV valve and no improvement.
Post #985644 15th Mar 2023 3:20pm
View user's profile Send private message View poster's gallery Reply with quote
ScottieG71



Member Since: 13 Mar 2023
Location: Alberta
Posts: 6
Canada 2007 Defender 110 Puma 2.4 XS CSW Zermatt Silver
I read in another forum not to run RPMS less than 1800...i will try to find the article...
Post #985672 15th Mar 2023 8:01pm
View user's profile Send private message View poster's gallery Reply with quote
jim4244



Member Since: 13 Apr 2014
Location: Bedfordshire
Posts: 782
England 2007 Defender 90 Puma 2.4 CSW Zermatt Silver
Have you checked your hoses for splits? Sounds like it could possibly be a split in the hose to your turbo?

Jim
Post #985676 15th Mar 2023 8:25pm
View user's profile Send private message View poster's gallery Reply with quote
JakkalsOO



Member Since: 15 Mar 2023
Location: Kempton Park
Posts: 4
South Africa 2003 Defender 110 Td5 DCPU Caledonian Blue
Thank you for the replies.
I have checked the hoses, have done a pressure test on the boost system, while the engine is off.
It doesn't have any leaks.

When I drive the vehicle, it performs well, until I go up an uphill, then it looses power and then when
one feathers the throttle it increases the performance again.

When running diagnostics I can see that when this occurs the fuel rail pressure drops to +-1200bar from +-1600bar.
Post #985680 15th Mar 2023 8:52pm
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17387
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
My 2.4 Puma pulls like the proverbial train from about 1100 rpm, and pulls well in all gears including 6th. It has an early (c.2010) BAS remap, from the days before Pete offered two power options, and it was pretty feeble before this. The map's been on for 13 years and over 210k miles.

I don't think I've ever revved the engine over 3k and I'm not sure I'd want to.
Post #985812 16th Mar 2023 6:24pm
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17387
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
ScottieG71 wrote:
I read in another forum not to run RPMS less than 1800...i will try to find the article...


Why on earth would anyone want to do this?
Post #985813 16th Mar 2023 6:25pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 2 of 2 <12
All times are GMT

Jump to  
<  Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums