Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > 700/900 Series General

Notices

700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Broken Down again!

Views : 15455

Replies : 308

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Sep 4th, 2017, 12:47   #301
Rversteeg
Master Member
 

Last Online: Today 16:59
Join Date: Feb 2006
Location: Amersfoort (NL)
Default Summary

Can you give us a summary what you have checked and replaced so far? I do not think that anyone will read back all 30 pages of what has been said before. It might bring up some new ideas.
Rversteeg is offline   Reply With Quote
The Following User Says Thank You to Rversteeg For This Useful Post:
Old Sep 4th, 2017, 13:11   #302
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Yesterday 09:22
Join Date: May 2012
Location: Lakenheath
Default

Quote:
Originally Posted by Laird Scooby View Post
Interesting. Sounds almost as if there's an air leak somewhere or perhaps the mixture was turned down for the MoT and now you have a clean air filter it's running a bit lean.

Despite the holes in the old exhaust, it could well have been blocked causing the mixture to go rich (probably more likely than the air filter) and the mixture was tweaked for the MoT.

With luck it should sort itself out in a few days, you could try disconnecting the battery for 10 minutes or so to reset the Motronics ECU so it re-learns the fuel trims from the start.
Quote:
Originally Posted by James_N View Post
Well I took it out this morning and it started stuttering and stalling again

Could it be a split pipe somewhere? This is turning into a nightmare

It worked ok after it had warned up but still stalled a lot and hesitated a little pulling from 1k revs
I think you need to get the mixture checked once it's hot and possibly hooked up to a diagnostic tuner of some description, Crypton, Sun/Snap-On or similar.

Also the hot air intake system on the air intake could be faulty but this usually just causes sluggishness when cold.
__________________
Cheers
Dave

Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........
Laird Scooby is offline   Reply With Quote
Old Sep 4th, 2017, 21:34   #303
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Yesterday 09:22
Join Date: May 2012
Location: Lakenheath
Default

I Had a thought earlier James. You had to have a couple of plugs tightened up didn't you? THere are some hoses at the bulkhead end of the engine that are vacuum hoses for the heater/Air-con controls, it's possible one of those has been knocked/pulled out. Could be worth a look........
__________________
Cheers
Dave

Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........
Laird Scooby is offline   Reply With Quote
Old Sep 5th, 2017, 10:28   #304
James_N
VOC Member
 
James_N's Avatar
 

Last Online: Jan 4th, 2024 11:32
Join Date: Jan 2006
Location: Stafford
Default

Well ive just took it for a drive and there is serious stuttering and juddering when hot. Ive called recovery and they are on their way. Hopefully they can have a look / take it to a local garage. Watch this space!
__________________
1997 Volvo 940 LPT Celebration. 187,700 miles, manual.
James_N is offline   Reply With Quote
The Following User Says Thank You to James_N For This Useful Post:
Old Sep 5th, 2017, 10:46   #305
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Yesterday 09:22
Join Date: May 2012
Location: Lakenheath
Default

I'm wondering about the earth leads...........
__________________
Cheers
Dave

Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........
Laird Scooby is offline   Reply With Quote
Old Sep 5th, 2017, 12:10   #306
James_N
VOC Member
 
James_N's Avatar
 

Last Online: Jan 4th, 2024 11:32
Join Date: Jan 2006
Location: Stafford
Default

Diagnosed as knackered dizzy cap and rotar arm. Said he can feel the spark arking out from the HT lead whatever that means, so i need to get a new Dizzy cap and rotor arm
__________________
1997 Volvo 940 LPT Celebration. 187,700 miles, manual.
James_N is offline   Reply With Quote
The Following User Says Thank You to James_N For This Useful Post:
Old Sep 5th, 2017, 12:53   #307
Laird Scooby
Premier Member
 
Laird Scooby's Avatar
 

Last Online: Yesterday 09:22
Join Date: May 2012
Location: Lakenheath
Default

It means he got a 30-40kV jolt off the cap! Surprised his eyes didn't light up!

They're not cheap but will make a huge difference, i also thought you had already checked/changed them which is why i didn't mention them above.

You'll be amazed at the difference it makes and you'll like the other, unseen/unfelt improvements too!
__________________
Cheers
Dave

Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........
Laird Scooby is offline   Reply With Quote
Old Sep 10th, 2017, 13:56   #308
m0bzy
Master Member
 
m0bzy's Avatar
 

Last Online: Feb 19th, 2021 17:00
Join Date: Nov 2003
Location: Birmingham
Default dizzy cap

I have a new dizzy cap going begging,no rotor arm though.
__________________
1995 850 GLT 2.5 liter 20 valve,Turquise
1998 V90 Green/Black/Blue. Depends on the light.
2004 Alfa 156 , JTS.
m0bzy is offline   Reply With Quote
Old Sep 11th, 2017, 07:32   #309
Arewethereyet
Junior Member
 

Last Online: Nov 15th, 2018 18:30
Join Date: Jan 2017
Location: Stevenage
Default

I'd replace the coil, the aforementioned symptoms are also that of an old coil breaking down under load/heat. You checked it earlier I know, but was that cold or when the fault was occurring. It's a 5 min job, easy access and cheap. It's the only bit of the ignition system not yet replaced, just a suggestion James, from personal experience over many years.
Arewethereyet is offline   Reply With Quote
The Following User Says Thank You to Arewethereyet For This Useful Post:
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 23:17.


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.