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20th November 2017, 16:28 | #1 |
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Rover 75 Tourer & MG ZT 190 SE Join Date: Aug 2015
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2.5 KV6 Slight Hesitation
Hi everyone,
Can anyone advise please? My KV6 75 Contemporary SE, has developed a new problem over the last week. When accelerating, the car hesitates a bit but then still continues to drive normally. At a constant speed, the car is fine, and when accelerating hard, but it's mostly felt when accelerating at lower speeds. It feels like slight fuel starvation, and is felt as a slight judder in the car, to the point where a passenger can notice the hesitation. Does anyone know where I should start investigations? The car starts normally, and has not cut out or died thus far. Many thanks.
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Ed 2004 Rover 75 Contemporary SE Tourer 2.5 2004 MG ZT 190 SE (Car number 96 of 151) |
20th November 2017, 16:43 | #2 |
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Rover less ! Join Date: Jun 2011
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By the sound of things it looks like your ViS motors are not doing their job.
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20th November 2017, 16:51 | #3 |
I really should get out more.......
Rover 75 connoisseur se v6 auto Join Date: May 2014
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I had a similar issue a few years ago in my 1.8T - it turned out to be a failing ignition coil.
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She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide. |
20th November 2017, 17:10 | #4 |
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When the VIS motors weren’t working on my old V6, it just lacked power. I didn’t encounter any hesitation as such from this problem. I did have a slight destination but that was down to a blocked CAT.
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Wanted - Indian bride. Cash waiting. (All sorted - bargain) First name and forum name: Ravinder Rover 75 2.0 CDT Connoisseur SE 116 (160 remap) Royal Blue (JFM) This vehicle was the 50,481st 75 to run off the production line, out of 112,381 This vehicle was the 2,238th 75 CDT Connoisseur SE to be made out of 3,775 This vehicle was the 5,002nd 75 in Royal Blue (code: JFM) to be made out of 14,420 Royal Blue 75s |
20th November 2017, 19:35 | #5 |
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Start with the basics before anything else. Your car needs air, petrol and spark. Check air filter is clean, all petrol hoses are in good nick and spark plugs / leads are in good condition (when were they last changed?).
I would be looking for a split in a rubber hose somewhere between tank and engine allowing air to be sucked in. Also worth replacing the fuel filter if it hasn't been done in a while. These are things which should be done as normal maintenance anyway so worth checking. |
21st November 2017, 08:20 | #6 |
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Lack of power when the engine is under load along with a juddering does sound like a coil pack on the way out. Try accelerating from a reasonably low speed in a high gear up a hill. If that makes it misbehave then that's certainly worth looking at. For confirmation warm her up and disconnect your ht leads one at a time. The one that doesn't make much of a difference is probably the culprit.
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21st November 2017, 16:29 | #7 | |
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21st November 2017, 16:30 | #8 | |
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21st November 2017, 17:27 | #9 | |
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21st November 2017, 18:41 | #10 | |
Gets stuck in
MG ZT 2.5 V6 Auto Tourer (Elizabeth) / MG ZT CDTI (Farage) Join Date: Jan 2017
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