|
700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
Information |
|
Not start after getting hotViews : 1708 Replies : 31Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Jul 16th, 2018, 18:47 | #1 |
Junior Member
Last Online: Aug 15th, 2018 22:03
Join Date: Mar 2016
Location: Istanbul
|
Not start after getting hot
Hi,
My Volvo starts well when it's cold. However, after it runs in low gear for a while and runs in idle for an half hour, it does not start. If I allow it cool down while bonnet is open for roughly ten or fifteen minutes, gets start immediately without hesitation. My battery and spark plugs are in good condition. What could be the reason? Thanks
__________________
Volvo 93 940 2.0T M46 First Owner |
Jul 16th, 2018, 19:37 | #2 |
Grumpy git born too late!
Last Online: Mar 20th, 2024 02:04
Join Date: Jul 2014
Location: Between Derby & Nottingham
|
Lack of fuel pressure?
Read elsewhere on here that fuel can return past a worn non-return valve and starve the engine when restarting? My 940 Turbo used to struggle to restart after stalling (my fault, not the engine's - mainly when parking) when up to temperature. But a quick blip of the throttle as I turned the key made it start with no issues Cheers
__________________
1997 965 2.5 SE Manual 1996 944 Classic 2.3 LPT - SOLD/BROKEN/SCRAPPED 1997 S90 3.0 - SOLD to doingitsideways 2021 Škoda Octavia Estate L iV PHEV (Company) |
Jul 16th, 2018, 21:42 | #3 |
Premier Member
Last Online: Yesterday 23:21
Join Date: May 2012
Location: Lakenheath
|
Is your fusebox behind the ashtray? I think some early 940s had them there. If so, check the fuseholder for the fuel pumps fuse. On some of the 740s i had, this had got hot in the past and melted, causing burning of the contacts where the fuse fits in.
This could be a possible cause of your trouble, also have you access to an exhaust gas analyser and where does the temperature gauge sit once it has run for half an hour?
__________________
Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
Jul 17th, 2018, 07:07 | #4 |
Junior Member
Last Online: Aug 15th, 2018 22:03
Join Date: Mar 2016
Location: Istanbul
|
Thanks for the replies.
jonnyf90, do you refer fuel pressure regulator? Laird Scooby, yes, it's behind the ashtray. I checked but couldn't find anything wrong.
__________________
Volvo 93 940 2.0T M46 First Owner |
Jul 17th, 2018, 10:01 | #5 |
Senior Member
Last Online: Mar 22nd, 2024 18:21
Join Date: Jul 2012
Location: Northwich
|
Does it cut out whilst driving or does it only have trouble starting after you turn it off?
__________________
940 B230FT |
The Following User Says Thank You to Jimsiss For This Useful Post: |
Jul 17th, 2018, 10:25 | #6 |
Junior Member
Last Online: Jun 18th, 2021 12:59
Join Date: Sep 2010
Location: Stockholm
|
Common problem when the crankshaft position sensor is defective
|
The Following 2 Users Say Thank You to magnus308 For This Useful Post: |
Jul 17th, 2018, 12:45 | #7 | |
Premier Member
Last Online: Yesterday 23:21
Join Date: May 2012
Location: Lakenheath
|
Quote:
It could be anything, at this moment in time we only have an FTP situation when hot. Need more clues and/or tests to get to the bottom of this.
__________________
Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
|
The Following User Says Thank You to Laird Scooby For This Useful Post: |
Jul 17th, 2018, 13:51 | #8 |
Junior Member
Last Online: Aug 15th, 2018 22:03
Join Date: Mar 2016
Location: Istanbul
|
No, it runs flawlessly whilst driving, having trouble after turning it off...
__________________
Volvo 93 940 2.0T M46 First Owner |
Jul 17th, 2018, 14:56 | #9 |
Premier Member
Last Online: Yesterday 23:21
Join Date: May 2012
Location: Lakenheath
|
Just to get this right, the car doesn't cut out, you switch it off and then have trouble restarting?
Have you ever put any injector cleaner into the fuel tank? I'm thinking one or more injectors are dirty and not closing properly, while it's off the extra fuel is leaking through and flooding it. This would have gradually got worse over time and has probably effected the fuel economy as well, and general performance. That may or may not be the problem, for the cost of some injector cleaner it would be worth adding some to your tank to see if the symptoms improve or disappear.
__________________
Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ |
Jul 17th, 2018, 15:20 | #10 | |
Junior Member
Last Online: Aug 15th, 2018 22:03
Join Date: Mar 2016
Location: Istanbul
|
Quote:
No, I have not ever used injector cleaner. However, couple months ago, all 0-rings on injectors were replaced. I will try injector cleaner and report back. Thanks
__________________
Volvo 93 940 2.0T M46 First Owner |
|
The Following User Says Thank You to whattodovolvo For This Useful Post: |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Display Modes | |
|
|