Recent Topics
Maxlife ATF for +4 application
by ZraHamilton. 05/26/19 03:43 PM
PL24651 Purolator One 6K Miles
by kstanf150. 05/26/19 02:38 PM
Inner tube for 700c beater
by MrQuackers. 05/26/19 02:34 PM
New to the cartridge oil filter party....
by ZZman. 05/26/19 11:49 AM
HF dual action polisher
by buck91. 05/26/19 11:22 AM
Virgin Motorcraft 820 Cut Open
by kstanf150. 05/26/19 11:11 AM
M1 EP for '19 F150 3.5 EB
by dseg42. 05/26/19 10:02 AM
Get New HVAC or Keep Old?
by tc1446. 05/26/19 09:48 AM
HF torque wrench wore out
by eljefino. 05/26/19 09:31 AM
garage fridge problems
by zrxkawboy. 05/26/19 08:35 AM
Sudden Unintelligence Syndrome
by AlienBug. 05/26/19 08:27 AM
Cutting Wet Grass
by Snagglefoot. 05/26/19 08:20 AM
Dealer Repair exposed a yellow wire?
by Datarock. 05/26/19 07:14 AM
Transmission Pan Gasket?
by mctmatt. 05/26/19 07:12 AM
Gas Mileage
by Al. 05/26/19 07:11 AM
Why HTHS 3.0 Minimum Is Preferred By Many ?
by ChrisD46. 05/26/19 06:14 AM
Fram Extra CA7597
by mcwilly. 05/26/19 03:26 AM
Carbon knock or piston slap
by i6pwr. 05/26/19 03:11 AM
Newest Members
brycam00, Kingkopra, rschwartz33, Rhoover, chirolla
68214 Registered Users
Who's Online Now
86 registered members (ARCOgraphite, bdcardinal, 53' Stude, 08z06, 1WildPig, 10 invisible), 2,143 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics289,429
Posts4,969,352
Members68,214
Most Online2,967
Mar 10th, 2019
Donate to BITOG
Hop To
Page 1 of 2 1 2
Carburted car runs fine while it's day, stutters at night #5078850
04/18/19 01:36 PM
04/18/19 01:36 PM
Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Glam_Stachee Offline OP
Glam_Stachee  Offline OP

Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
It's like a bad superhero. Runs fine and dandy during the day but then if I try to run it at night it constantly stutters in 1st and 2nd gear at lower RPMs, I know that's normal but it doesn't happen during the day. Temperature doesn't affect the stuttering, could be freezing during noon it will run just fine, and could be warm at night and it still stutters, and car does it both when the engine is cold and warmed up.
Carb was just tuned up, I cleaned it, changed the air filter and even poured in STP fuel cleaner to see if that would fix it, still does it.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5078865
04/18/19 01:44 PM
04/18/19 01:44 PM
Joined: Jan 2016
Posts: 880
Nebraska
Duffyjr Offline
Duffyjr  Offline

Joined: Jan 2016
Posts: 880
Nebraska
The only difference between day and night would be your lights, does it do it at night if you turn the headlights off.


89 GMC Sierra VR1 10w30/1036 Gold
08 Lucerne CX Advanced 5w30/1040 Gold
02 DeVille VWB 5w30/CQ Blue
18 Toro Super Recycler T5 10w30
Re: Carburted car runs fine while it's day, stutters at night [Re: Duffyjr] #5078917
04/18/19 02:31 PM
04/18/19 02:31 PM
Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Glam_Stachee Offline OP
Glam_Stachee  Offline OP

Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Originally Posted by Duffyjr
The only difference between day and night would be your lights, does it do it at night if you turn the headlights off.


Yup, still does it, tried turning on the lights during the day, even brights, doesn't do it. And I don't see how electronics could affect stuttering in any way.
Only time it didn't do this is after I poured in the STP into the fuel and a week later when I filled up the tank again, then it did run fine all the way to my destination, but again when I turned the car back on it started again.

I am starting to think the gas I'm using might be affecting it, since the one time it didn't stutter I filled up at the more expensive gas station with "supposedly" better quality gas. I might even try switching from 95 to 98, maybe that will help.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5078936
04/18/19 02:45 PM
04/18/19 02:45 PM
Joined: May 2010
Posts: 10,104
out there
spasm3 Online content
spasm3  Online Content

Joined: May 2010
Posts: 10,104
out there
What car? What type of ignition system? I'd look at everything spark plug wires, cap and rotor esp. If it has points, check them, file and gap them. Might try a new condenser. Day night thing does not make sense unless its a load like lights , a/c that the alternator can't handle and lowers power to the coil, but thats a stretch.


13 elantra 75k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 9500 miles m1 0w30
Re: Carburted car runs fine while it's day, stutters at night [Re: spasm3] #5078944
04/18/19 02:52 PM
04/18/19 02:52 PM
Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Glam_Stachee Offline OP
Glam_Stachee  Offline OP

Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Originally Posted by spasm3
What car? What type of ignition system? I'd look at everything spark plug wires, cap and rotor esp. If it has points, check them, file and gap them. Might try a new condenser. Day night thing does not make sense unless its a load like lights , a/c that the alternator can't handle and lowers power to the coil, but thats a stretch.


It's a 1991 Peugeot 309. Don't know what kind of ignition system but it's definetly different from my previous cars. Doesn't have points since it's not that old. And I can conclude it's not a load thing as it runs fine with the light on during the day and still stutters during night.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5078951
04/18/19 02:56 PM
04/18/19 02:56 PM
Joined: Nov 2012
Posts: 649
Ajax,Ontario, Canada
Pelican Offline
Pelican  Offline

Joined: Nov 2012
Posts: 649
Ajax,Ontario, Canada
Originally Posted by Glam_Stachee
It's like a bad superhero. Runs fine and dandy during the day but then if I try to run it at night it constantly stutters in 1st and 2nd gear at lower RPMs, I know that's normal but it doesn't happen during the day. Temperature doesn't affect the stuttering, could be freezing during noon it will run just fine, and could be warm at night and it still stutters, and car does it both when the engine is cold and warmed up.
Carb was just tuned up, I cleaned it, changed the air filter and even poured in STP fuel cleaner to see if that would fix it, still does it.


Possibly humidity as it's generally more humid at night, I'D CHECK THE FUEL-AIR MIXTURE

Re: Carburted car runs fine while it's day, stutters at night [Re: Pelican] #5078955
04/18/19 02:59 PM
04/18/19 02:59 PM
Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Glam_Stachee Offline OP
Glam_Stachee  Offline OP

Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Originally Posted by Pelican
Originally Posted by Glam_Stachee
It's like a bad superhero. Runs fine and dandy during the day but then if I try to run it at night it constantly stutters in 1st and 2nd gear at lower RPMs, I know that's normal but it doesn't happen during the day. Temperature doesn't affect the stuttering, could be freezing during noon it will run just fine, and could be warm at night and it still stutters, and car does it both when the engine is cold and warmed up.
Carb was just tuned up, I cleaned it, changed the air filter and even poured in STP fuel cleaner to see if that would fix it, still does it.


Possibly humidity as it's generally more humid at night, I'D CHECK THE FUEL-AIR MIXTURE


So far it's the theory most people have brought up when I asked them, but honestly I just did the carb not 5 months ago and can't be asked to do it again.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5078980
04/18/19 03:25 PM
04/18/19 03:25 PM
Joined: Jun 2003
Posts: 10,874
Illinois
javacontour Offline
javacontour  Offline

Joined: Jun 2003
Posts: 10,874
Illinois
Are you sure it's an engine issue?

Could it be a drive line issue that manifests during a more humid night?

Clutch chattering or skipping when it's damp that you don't see during more dry conditions?

If it is an engine issue, I'm thinking marginal HT leads / spark plug wires depending on which version of English car part names you use.

I'd certainly look into cap, rotor, wires/leads and maybe even the plugs.

If it all checks out, and voltages are good with the lights on as others have suggested, start looking for other issues such as a chattering clutch or similar.


network down, IP packets delivered via UPS -BOFH
Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5079008
04/18/19 03:48 PM
04/18/19 03:48 PM
Joined: Jun 2015
Posts: 741
Arizona
Kawiguy454 Offline
Kawiguy454  Offline

Joined: Jun 2015
Posts: 741
Arizona
Check spark plug wires and boots for dry/cracking or arc tracks. If they're old replace them. Check engine ground strap and ignition electronics to ensure a good clean ground connection. Misfire can only be fuel or ignition and you've eliminated fuel. The electronics with a nominal ground wont fire well and old wires/boots can arc across their surface.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5079012
04/18/19 03:53 PM
04/18/19 03:53 PM
Joined: May 2015
Posts: 1,052
Brittany / Canada
Popsy Offline
Popsy  Offline

Joined: May 2015
Posts: 1,052
Brittany / Canada
What about humidity ?

Edit : way too late smile

Carb adjustement is finicky on these

Last edited by Popsy; 04/18/19 03:58 PM.

96 Barchetta, 300V 5W40 | Forfour 95, SHU 0W40
Mazda 6 2.3, M1 AFE 0W20 | Colt Ralliart, 300V 0W40
Re: Carburted car runs fine while it's day, stutters at night [Re: javacontour] #5079056
04/18/19 04:36 PM
04/18/19 04:36 PM
Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Glam_Stachee Offline OP
Glam_Stachee  Offline OP

Joined: Dec 2018
Posts: 38
Bosnia and Herzegovina
Originally Posted by Popsy
What about humidity ?

Edit : way too late smile

Carb adjustement is finicky on these


Not really, not much more complicated than my old cars, except the stupid air filter which takes forever to take off. I'm just really bad at adjusting carbs and so far it runs good half the day.
Originally Posted by javacontour
Are you sure it's an engine issue?

Could it be a drive line issue that manifests during a more humid night?

Clutch chattering or skipping when it's damp that you don't see during more dry conditions?

If it is an engine issue, I'm thinking marginal HT leads / spark plug wires depending on which version of English car part names you use.

I'd certainly look into cap, rotor, wires/leads and maybe even the plugs.

If it all checks out, and voltages are good with the lights on as others have suggested, start looking for other issues such as a chattering clutch or similar.


Possible that it's the something to do with the spark plugs. I haven't touched them since I got the car, but only because I don't have a socket for removing them anymore, gonna have to get one of those first.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5079070
04/18/19 04:49 PM
04/18/19 04:49 PM
Joined: May 2015
Posts: 1,052
Brittany / Canada
Popsy Offline
Popsy  Offline

Joined: May 2015
Posts: 1,052
Brittany / Canada
Not complicated, just that it tends to need adjustment often. Again my experience based on a 205 so I don't know, more space under the 309's hood so maybe less prone to need adjustment ?

Also there was two types of carbs on these, Solex and Weber. Solex apparently harder to tune ?


96 Barchetta, 300V 5W40 | Forfour 95, SHU 0W40
Mazda 6 2.3, M1 AFE 0W20 | Colt Ralliart, 300V 0W40
Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5079146
04/18/19 06:11 PM
04/18/19 06:11 PM
Joined: Jun 2003
Posts: 34,437
ME
eljefino Offline
eljefino  Offline

Joined: Jun 2003
Posts: 34,437
ME
Stuttering's an ignition issue.

I replaced the factory carb on my 1985 dodge plow truck last year. The new one works great. They are a wear item that wears out, and all the adjusting in the world won't make up for that.

Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5079251
04/18/19 08:20 PM
04/18/19 08:20 PM
Joined: Jun 2017
Posts: 293
New Hampshire USA
Dinoburner Offline
Dinoburner  Offline

Joined: Jun 2017
Posts: 293
New Hampshire USA
Had a similar problem many years ago and what we did was open the hood in a dark area and watched tiny sparks flash intermittently on the plug wires; Next day we misted the wires and the engine shook and stalled.


77 Chev stepside 454 Casteroil syn
95 GMC 4wd mobil syn
2016 Equinox LTZ V6 dealer
Kubota L5030 T6
Re: Carburted car runs fine while it's day, stutters at night [Re: Glam_Stachee] #5079253
04/18/19 08:23 PM
04/18/19 08:23 PM
Joined: Aug 2004
Posts: 1,465
VA
Rhymingmechanic Offline
Rhymingmechanic  Offline

Joined: Aug 2004
Posts: 1,465
VA
Ignition would be my guess, too, if it gets significantly more humid at night.

Have you ever opened the hood while it's running at night? If the plug wires are really bad, you might see them arcing in the dark.

Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™