Author Topic: Will not reverse (CVT)  (Read 25916 times)

guest2224

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Will not reverse (CVT)
« on: July 05, 2011, 09:13:13 PM »
Hi,

I Recently brought a Honda Jazz 1.4 CVT-7 on a 55 plate.

Wondering if anyone has had any experience or any ideas on why the car will not reverse up hills.
It starts to reverse then just revs at a standstill before rolling forward.  The car drives fine in all forward modes/gears and reverses well on the flat.  When trying to reverse with the handbrake on it pulls hard against the handbrake.  It seems the problem is only when trying to reverse up hills.

I have checked the automatic gearbox oil level, visually checked the quality/ smelt it for burnt smell etc and it all seems fine/ very clean.

Does anyone have any ideas?

Thanks

Phil

DV

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Re: Will not reverse up hill (CVT)
« Reply #1 on: July 06, 2011, 04:57:30 PM »
Check the oil level in the gearbox. There should be an oil level stick under the bonnet. All of the auto gearboxes are sensitive to the oil level and quality.

guest2224

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Re: Will not reverse up hill (CVT)
« Reply #2 on: July 06, 2011, 06:02:54 PM »
Thanks, the oil level is fine and the quality looks and smells ok.  I will change the oil on Friday and see if this makes a difference.

guest2224

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Re: Will not reverse up hill (CVT)
« Reply #3 on: July 06, 2011, 07:10:59 PM »
I have bought genuine Honda CVT-F to use (will change it on Friday).  Cheers for the link but still not finding anything similar anywhere I look.  I have phoned a dealers and spoken to technician who also has not heard of this problem.  The gearbox works fine with no judder etc, it is only going up a steep incline in reverse that I have any problem.

olduser1

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Re: Will not reverse up hill (CVT)
« Reply #4 on: July 07, 2011, 08:17:30 PM »
If the car was bought from a dealer you just take it back have it repaired at thier expense or get your £ back in full -  all cars have 6 months guarantee these days

guest2224

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Re: Will not reverse up hill (CVT)
« Reply #5 on: July 08, 2011, 08:31:34 AM »
It was a private sale (one owner, full Honda service History).  I was just wondering if anyone had any idea on what the fault might be.  The technicians in the Honda dealerships that I have spoken to say they have never heard of this.  As the car performs very well in all conditions other than reversing up a hill I am reluctant to change the CVT transmission (about £500 for a second hand box) before finding out what might be causing this issue.

olduser1

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Re: Will not reverse up hill (CVT)
« Reply #6 on: July 08, 2011, 09:28:57 AM »
I would go the chap you bought it from - gtet your £ back, or try consumer advice .

Last resort find a specialist auto transmission place near to you and ask thier advice.

Q
AUTOMATIC TRANSMISSION SPECIALISTS: Could you recommend any automatic gearbox specialists prepared to service and rebuild automatic boxes rather than simply replace them?
A
• King Automatics, The Chalk Pit, College Road, Epsom, Surrey, tel: 01372 728769.
• Automatic Transmissions (Tattersall), Tattersall Bridge, near Coningsby, Lincoln, tel: 01526 342956.
• JP (Automatic Transmissions) Ltd, www.jpat.co.uk, Units 4a & 4b Pear Tree Ind Est, Upper Langford, N Somerset, BS40 5DJ, tel: 01934 852772.
• Sussex Automatics,www.sussexautos.co.uk
• FEDERATION OF AUTOMATIC TRANSMISSION ENGINEERS,www.fedauto.co.uk

bill888

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Re: Will not reverse up hill (CVT)
« Reply #7 on: July 08, 2011, 10:33:17 AM »

fwiw, this CVT troubleshooting page at hondafitjazz.com may be useful reading.

http://www.hondafitjazz.com/manual/A00/HTML/M2/SAA2EM2E15100000000HBAT00.HTML
2007(57) Jazz 1.4SE CVT-7 (GE3 - made in China)

guest2224

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Re: Will not reverse up hill (CVT)
« Reply #8 on: July 09, 2011, 05:16:57 PM »
Thanks for the replys so far.

I serviced the car today, all fiters, plugs, oils and fluids.

I changed and flushed the CVT oil hoping it would improve the problem I have with reverse.

After the service I tried to reverse and it was exactly the same.  I tried and few more times and it started working!! It was perfect and how it should be, pulling hard up hills and able to reverse at speed.  I spent a while checking this and was pleased the problem seemed to have gone away but.....

........When I jumped back into the car it was worse than it has ever been! It would not even pull on the flat ground.

Bill, cheers for the CVT troubleshooting page at hondafitjazz.com it does contain some ideas but many of them would require stripping the box so I would want to be very sure it was not something else first.

In some ways because it started working and then stopped again this might not be a bad thing.  I think if it were mechanical (plantery gears, sun etc) then it would just not work at all. 


DV

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Re: Will not reverse up hill (CVT)
« Reply #9 on: July 09, 2011, 10:01:26 PM »
These intermittent problems are the worst to find and solve.
Have you checked the oil level at last again?

I changed the Input shaft bearings in my car today (started yesterday) and the car is reborn! So quiet as if I had a brand new car...
« Last Edit: July 09, 2011, 10:04:08 PM by DV »

JazzyB

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Re: Will not reverse up hill (CVT)
« Reply #10 on: July 09, 2011, 10:26:38 PM »
These intermittent problems are the worst to find and solve.
Have you checked the oil level at last again?

I changed the Input shaft bearings in my car today (started yesterday) and the car is reborn! So quiet as if I had a brand new car...

What was involved and how difficult?

guest2224

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Re: Will not reverse up hill (CVT)
« Reply #11 on: July 10, 2011, 10:44:21 AM »
DV, the fact that it worked fine then stopped gives me a little hope.  You are right about inttermittent problems.  I am at a loss with it now and will book it in with Honda for them to diagnose, I hold out no hopes what so ever on a proper diagnosis but I do expect them to say that it needs a new gearbox.

Well done on your overhaul,  big job.
----- Double Post Prevention - new post below: 1310291412 -----
I should change the title to will not reverse
It will only reverse on the flat and on tick over (sometimes), any increase in revs and it stops

DV

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Re: Will not reverse up hill (CVT)
« Reply #12 on: July 10, 2011, 01:08:12 PM »
These intermittent problems are the worst to find and solve.
Have you checked the oil level at last again?

I changed the Input shaft bearings in my car today (started yesterday) and the car is reborn! So quiet as if I had a brand new car...

What was involved and how difficult?


Well, it was not that easy for 1 person to do it outside of the house but I managed it...
It was the 2nd time within 2 months the gearbox was out.

1st time I changed the reverse shift holder and the "clutch kit" including the thrust bearing because I thought it is worn and it makes the noise but it was not. Anyway the clutch was on the minimum limit (lot of driving in London) so I just replaced.

Yesterday I changed the input shaft bearings (1 is on the clutch side and the other is inside the gearbox housing. To punch out the clutch side bearing was easy with the "parallel pin punch" bought from screwfix, http://www.screwfix.com/p/parallel-pin-punches-5pc/16551. Here I had to be very careful not to damage the seal between the bearing and the gearbox housing.

At the other end the bearing easily popped out, I used the circlip plier inside the bearing to-catch-and-pull, http://www.screwfix.com/p/circlip-pliers-set-4-piece/43041.
No. 14, http://www.hondaoriginalparts.com/honda_car_parts_selection_pfk.php?block_01=17SAA01&block_02=M__0400&block_03=19952.

The 3rd bearing what I was able to change was the offside differential bearing with the ball bearing puller. I had to place one square plier bar underneath the centre of the puller because there is the hole for the axle.

On the other side of the differential I could not change the bearing because the ball bearing puller didin`t fit between the bearing and the plastic speedometer drive, http://www.hondaoriginalparts.com/honda_car_parts_selection_pfk.php?block_01=17SAA01&block_02=M__0800&block_03=19952.

I could not change any counter shaft bearings but only the input shaft bearing on the clutch side was the worse. So only to change those two was enough.
Honda recommended me to change all the 7 bearings but I changed only 3 and the car is ultra quiet. Now I can hear the tyre and wind noises only.
« Last Edit: July 10, 2011, 05:52:49 PM by DV »

guest2224

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Re: Will not reverse (CVT)
« Reply #13 on: July 11, 2011, 11:50:32 AM »
I don't get (hardly) any drive in reverse now.  It tries and just judders.  I am replacing the cvt gearbox on Wednesday. Anyone had any experiance of this? Easy enough job?
Phil

Eddie Honda

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Re: Will not reverse up hill (CVT)
« Reply #14 on: June 26, 2015, 12:20:42 PM »
I know that this is an old thread, but I'm about to deal with similar symptoms. Great forwards, slipping backwards.

After the service I tried to reverse and it was exactly the same.  I tried and few more times and it started working!! It was perfect and how it should be, pulling hard up hills and able to reverse at speed.  I spent a while checking this and was pleased the problem seemed to have gone away but.....

........When I jumped back into the car it was worse than it has ever been! It would not even pull on the flat ground.

I know this user hasn't been active for years, but for others in the same boat...

I've looked at the manual and see that there is a reverse clutch inside the transmission. Honda call it the reverse brake. I'm about to deal with a 2005 car that has had lots of city use and will see how dirty the CVT oil is when drained. My thoughts are leading to a stuck/sticky valve which is preventing the PH (high pressure) oil reaching the reverse brake and locking this clutch pack to effect reverse. Either that or the reverse brake is leaking inside the box and thus slipping. Would need to hook up a gauge to the test point and find out.

In the OP's case of it magically working again albeit briefly, I think it is a dodgy reverse inhibitor solenoid valve, but we'll never know for sure.

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