Help please, No Acceleration next minute its ok.

tankie1rtr · 12th September 2017, 16:36

Hi Guys.
i have a Connie Tourer on a 2003 Plate, usually runs like a dream, Before Christmas I put a new MAF Sensor on her its a genuine Bosch part from Germany. I also have new Air Filter and PCV Filter, recently I noticed that when I go to accelerate that she thinks about of for a minute then pics up and boosts forward, then she was ok for a couple of months, I towed the caravan to the Lake District on Thursday just gone, pulled like a dream no problem, 108 miles returning 26.5 to the gallon according to the computer, (Oh and she is a Diesel, had her chipped by BigRuss a couple of years ago,) so today I was coming home and I pulled into a Layby for a drink, when i came to set off, (I always pull away in 2nd gear when I am towing the caravan) i put my foot down and she just moved very very slowly and there were no rev's she more or less just ticked over, I moved upto Drive and she did nothing just about 5mph, then down again to 2nd, after thinking about ot for a few seconds she found power and pulled away, didnt have any more problems, after I dropped the caravan off at the storage i was coming home and I went to accelerate on a national speed limit, and once again she had to think about it for a couple of seconds then responded. It is not the fuel filter as I put a new filter on about 4 months ago, and I never let her run very low on fuel, so any help will be much appreciated. health & Safe Wishes to All.

stevenicks · 12th September 2017, 17:20

I had a similar problem with my diesel, turned out to b the clutch.

COLVERT · 12th September 2017, 18:40

Quote:

Originally Posted by stevenicks

I had a similar problem with my diesel, turned out to be the clutch.

Don't think the automatic has a clutch.

Could be low oil in the auto box though.---

tankie1rtr · 12th September 2017, 19:47

Quote:

Originally Posted by stevenicks

I had a similar problem with my diesel, turned out to b the clutch.

Stevenicks

It doesnt have a clutch, Its Automatic, the clutch in effect is an inertial kettle ??? The Oil is fine had it checked last year at my garage, also if it was oil it would be a constant same problem and this isnt.

marinabrian · 12th September 2017, 20:43

Sounds very much like the EGR is sticking, take it off clean and refit

Brian

tankie1rtr · 13th September 2017, 14:33

Quote:

Originally Posted by marinabrian

Sounds very much like the EGR is sticking, take it off clean and refit

Brian

Hi Brian.
Thank you for your answer. The EGR Valve was taken off, it has one of those bypass kits.

frankgoldstar · 16th September 2017, 21:36

My old 75 CDT has the same problem-ish.

When it goes, it goes very well, but it has fits of the blues where it can be a bit embarrassing.

The problem is the completely random form it takes. I have even known it to occur on the same drive, after it has been performing like a lion.

EGR cleaned, new Bosch MAF, both pumps ok etc,. but no amount of messing about has solved it.

Does not seem to be as bad as the original poster has and I can always fall back on the "Gentleman's conveyance driven by an older gentleman at his own pace" as an excuse!

Hope you solve your problems my friend, and when you do, please let us all have feedback on what cured it.

Best wishes, Frank

tankie1rtr · 17th September 2017, 07:09

Quote:

Originally Posted by frankgoldstar

My old 75 CDT has the same problem-ish.

When it goes, it goes very well, but it has fits of the blues where it can be a bit embarrassing.

The problem is the completely random form it takes. I have even known it to occur on the same drive, after it has been performing like a lion.

EGR cleaned, new Bosch MAF, both pumps ok etc,. but no amount of messing about has solved it.

Does not seem to be as bad as the original poster has and I can always fall back on the "Gentleman's conveyance driven by an older gentleman at his own pace" as an excuse!

Hope you solve your problems my friend, and when you do, please let us all have feedback on what cured it.

Best wishes, Frank

Hello Frank.
Thank you for a lovely reply, yes its frustrating to say the least, but she pulls like a Lion and then decides shes having a weak moment on the same drive, i have replaced all the filers, new MAF she doesnt have the EGR it has the bypass kit. somedays she is no problem at all.

Mike Noc · 17th September 2017, 07:22

The next time it plays up, as a test, try unplugging the LP fuel pressure sensor - it is the plug on top of the fuel filter, and see if things improve.

tankie1rtr · 17th September 2017, 10:17

Quote:

Originally Posted by Mike Noc

The next time it plays up, as a test, try unplugging the LP fuel pressure sensor - it is the plug on top of the fuel filter, and see if things improve.

Thanks Mike. I will try that.

12th September 2017, 16:36	#1
tankie1rtr Avid contributor Rover 75 Connie Diesel Auto tourer Join Date: Apr 2012 Location: York Posts: 239 Thanks: 39 Thanked 18 Times in 13 Posts	Help please, No Acceleration next minute its ok. Hi Guys. i have a Connie Tourer on a 2003 Plate, usually runs like a dream, Before Christmas I put a new MAF Sensor on her its a genuine Bosch part from Germany. I also have new Air Filter and PCV Filter, recently I noticed that when I go to accelerate that she thinks about of for a minute then pics up and boosts forward, then she was ok for a couple of months, I towed the caravan to the Lake District on Thursday just gone, pulled like a dream no problem, 108 miles returning 26.5 to the gallon according to the computer, (Oh and she is a Diesel, had her chipped by BigRuss a couple of years ago,) so today I was coming home and I pulled into a Layby for a drink, when i came to set off, (I always pull away in 2nd gear when I am towing the caravan) i put my foot down and she just moved very very slowly and there were no rev's she more or less just ticked over, I moved upto Drive and she did nothing just about 5mph, then down again to 2nd, after thinking about ot for a few seconds she found power and pulled away, didnt have any more problems, after I dropped the caravan off at the storage i was coming home and I went to accelerate on a national speed limit, and once again she had to think about it for a couple of seconds then responded. It is not the fuel filter as I put a new filter on about 4 months ago, and I never let her run very low on fuel, so any help will be much appreciated. health & Safe Wishes to All.

12th September 2017, 17:20	#2
stevenicks This is my second home MG ZT 180 Auto / Rover 75 2.0 Diesel Join Date: Apr 2013 Location: Brecon. Posts: 7,465 Thanks: 3,297 Thanked 1,666 Times in 1,264 Posts	I had a similar problem with my diesel, turned out to b the clutch. __________________ "You're Not Laughing Now Are You?" Steve

16th September 2017, 21:36	#7
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	Same problem My old 75 CDT has the same problem-ish. When it goes, it goes very well, but it has fits of the blues where it can be a bit embarrassing. The problem is the completely random form it takes. I have even known it to occur on the same drive, after it has been performing like a lion. EGR cleaned, new Bosch MAF, both pumps ok etc,. but no amount of messing about has solved it. Does not seem to be as bad as the original poster has and I can always fall back on the "Gentleman's conveyance driven by an older gentleman at his own pace" as an excuse! Hope you solve your problems my friend, and when you do, please let us all have feedback on what cured it. Best wishes, Frank

12th September 2017, 20:43	#5
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	Sounds very much like the EGR is sticking, take it off clean and refit Brian

17th September 2017, 07:22	#9
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,547 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	The next time it plays up, as a test, try unplugging the LP fuel pressure sensor - it is the plug on top of the fuel filter, and see if things improve.