2.5 V6 Hesitation! Suggestions and opinions?

Robson Rover Repair · 5th August 2010, 20:58

And here we go again.

The ZT has started giving me a hesitation whenever I put the foot down, or accelerate in a firm manor. Noticed it when driving back from mechanic.

Now im thinking its gotta be oil related since the oil spray went everywhere, id cleaned the car today around the belts and everything, theres no issues that way. Car revs fine when NOT in gear, but when driving it happens in random gears and at random revs, so its not 100% defined to one section.

I did spill a bit of oil when topping up into the area near the spark plug, so it makes me think that MAYBE its the plug not sparking right, but if its in tight and right there wouldnt be much chance of oil getting in.

Suggestions?

Maf?
Coil packs?
Fueling issue?

Plenty of oil in the engine, coolant and all is 100% perfect now, so im lost. Had a few searches but its all 1.8T and CDTi releated mostly for the hesitation searches.

Anyone?

Dragrad · 5th August 2010, 23:50

Have a FREE Bump for the morning

The Jugs · 6th August 2010, 00:23

Have you checked the VIS motors ?

Robson Rover Repair · 6th August 2010, 06:21

Well they behave ok. Was a lot better on the way to work today, juddered twice just, once in 5th around 2200k reves and other in 4th doing 30mph.

Robson Rover Repair · 10th August 2010, 12:42

Right, the warning light (the one that looks like a tap) came on yesterday when the car was warming up, so ive booked into BXR cars to get Trever to have a look at whats up with the engine.

Cleaned EVERYTHING in the engine down, checked most things I can etc.

Hope its not serious. Know around 10am tomorrow.

thomas 75 connie · 10th August 2010, 16:18

Quote:

Originally Posted by MacGyver

Right, the warning light (the one that looks like a tap) came on yesterday when the car was warming up, so ive booked into BXR cars to get Trever to have a look at whats up with the engine.

Cleaned EVERYTHING in the engine down, checked most things I can etc.

Hope its not serious. Know around 10am tomorrow.

I'm sorry to hear it mate I really am. When I had my old zr it hesitated and the warning light came on. It turned out to be the leads had perished. I know it's a v6 but maybe good luck and let us know how you get on

T-Cut · 10th August 2010, 18:02

If it's a later than 2001 model, it could be the early signs of FFS.

TC

thomas 75 connie · 10th August 2010, 18:04

What does FFs mean?

Robson Rover Repair · 13th August 2010, 01:01

Misfire on cylinder 6. Suspected wiring, but im getting all sparks changed also.

Booked in for monday, unfortunatly the warning light is now on perminatly and ive no choice but to drive her until then as ive night shift all weekend.

Robson Rover Repair · 17th August 2010, 06:21

A conclusion to my woes.

Coil pack had died for the rear bank causing a misfire, then it died leaving the check engine/warning light on constantly. Cylinder 6 was where it started.

Had new packs and plugs replaced as my front plug in cylinder 1 had split twice. These where brand new only four thousand miles ago.

Hope thats some use to some one. When the cylinder miss fires it causes six flashes of the warning light.

Now running smoother than a virgins thighs!

5th August 2010, 20:58	#1
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,104 Thanks: 299 Thanked 1,046 Times in 568 Posts	2.5 V6 Hesitation! Suggestions and opinions? And here we go again. The ZT has started giving me a hesitation whenever I put the foot down, or accelerate in a firm manor. Noticed it when driving back from mechanic. Now im thinking its gotta be oil related since the oil spray went everywhere, id cleaned the car today around the belts and everything, theres no issues that way. Car revs fine when NOT in gear, but when driving it happens in random gears and at random revs, so its not 100% defined to one section. I did spill a bit of oil when topping up into the area near the spark plug, so it makes me think that MAYBE its the plug not sparking right, but if its in tight and right there wouldnt be much chance of oil getting in. Suggestions? Maf? Coil packs? Fueling issue? Plenty of oil in the engine, coolant and all is 100% perfect now, so im lost. Had a few searches but its all 1.8T and CDTi releated mostly for the hesitation searches. Anyone? __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

5th August 2010, 23:50	#2
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	Have a FREE Bump for the morning __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER...

6th August 2010, 00:23	#3
The Jugs Loves to post Rover 75 saloon club SE manual 2.0 V6 Join Date: May 2008 Location: Chatham, Kent. Posts: 289 Thanks: 0 Thanked 0 Times in 0 Posts	Have you checked the VIS motors ? __________________ [SIGPIC][/SIGPIC]

6th August 2010, 06:21	#4
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,104 Thanks: 299 Thanked 1,046 Times in 568 Posts	Well they behave ok. Was a lot better on the way to work today, juddered twice just, once in 5th around 2200k reves and other in 4th doing 30mph. __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

10th August 2010, 12:42	#5
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,104 Thanks: 299 Thanked 1,046 Times in 568 Posts	Right, the warning light (the one that looks like a tap) came on yesterday when the car was warming up, so ive booked into BXR cars to get Trever to have a look at whats up with the engine. Cleaned EVERYTHING in the engine down, checked most things I can etc. Hope its not serious. Know around 10am tomorrow. __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

10th August 2010, 18:02	#7
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,754 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	If it's a later than 2001 model, it could be the early signs of FFS. TC

10th August 2010, 18:04	#8
thomas 75 connie This is my second home Rover 75 launch car x2, Rover 800 Vitesse Join Date: Jan 2009 Location: Plymouth Devon Posts: 8,463 Thanks: 1,115 Thanked 1,083 Times in 653 Posts	What does FFs mean?

13th August 2010, 01:01	#9
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,104 Thanks: 299 Thanked 1,046 Times in 568 Posts	Misfire on cylinder 6. Suspected wiring, but im getting all sparks changed also. Booked in for monday, unfortunatly the warning light is now on perminatly and ive no choice but to drive her until then as ive night shift all weekend. __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

17th August 2010, 06:21	#10
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,104 Thanks: 299 Thanked 1,046 Times in 568 Posts	A conclusion to my woes. Coil pack had died for the rear bank causing a misfire, then it died leaving the check engine/warning light on constantly. Cylinder 6 was where it started. Had new packs and plugs replaced as my front plug in cylinder 1 had split twice. These where brand new only four thousand miles ago. Hope thats some use to some one. When the cylinder miss fires it causes six flashes of the warning light. Now running smoother than a virgins thighs! __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024