| View previous topic :: View next topic |
| Author |
Message |
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
 Posted: Fri Jan 30, 2009 8:14 pm Post subject: 16v bogging down when cold |
 |
|
Hey guys, I used to park my car facing downhill but now face uphill.
The car starts, idles and fast idles ok. when i go to pull away it bogs down and i have to keep the revs up quite high.
Is this normal? I used to face downhill so it might have always done this but I never noticed.
Any ideas?
_________________
x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
| Back to top |
|
 |
icky
Alfasud
Joined: 20 Mar 2003
Posts: 70
Location: Lismore NSW Australia
|
| Posted: Fri Jan 30, 2009 10:23 pm Post subject: |
|
|
Al,
Fuel draining from the lines back to the tank?
Can you check the fuel filter before and during cranking for volume?
If it's the cold affecting it... Then move.
May I suggest this place? 
| Quote: |
Melbourne has experienced a record heatwave, with three days over 43 degrees this week and the CBD reaching 44.2 degrees at 2:30pm AEST.
www.weatherzone.com.au
|
Cheers
_________________
Specialization is For Insects
1988 33 1.5 S 8V |
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
| Posted: Fri Jan 30, 2009 10:36 pm Post subject: |
|
|
icky, lol
id love to move somewhere hot.
How would i go about
| Quote: |
| Can you check the fuel filter before and during cranking for volume? |
I have heard that these fuel filters are a PITA.
_________________
x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
| Back to top |
|
|
john 33_16v
16 Valve
Joined: 27 May 2005
Posts: 1406
Location: herts, uk
|
| Posted: Fri Jan 30, 2009 10:36 pm Post subject: Re: 16v bogging down when cold |
|
|
| BigAl wrote: |
| Is this normal? |
How steep is the hill? 
John
_________________
If it aint broke, fiddle with it until it is!
- - - - - - - - - - - - - -
93 33 16v Mirtle Met
08 Fiat Grande Punto Exotica Red
90 Yamaha FZR600 Genesis- Silky white/red/blue |
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
| Posted: Fri Jan 30, 2009 10:43 pm Post subject: |
|
|
hey John
| Quote: |
| How steep is the hill? |
not very, there are no gradient markings as its a side street. when my handbrake had just been adjusted 1 click was enough to hold the car.
_________________
x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
| Back to top |
|
|
icky
Alfasud
Joined: 20 Mar 2003
Posts: 70
Location: Lismore NSW Australia
|
| Posted: Fri Jan 30, 2009 10:45 pm Post subject: |
|
|
Al,
I cheated earlier, I had wacked in one of the el cheapo clear plastic filters in the engine bay... Can never have enough clean fuel...
Cheers
_________________
Specialization is For Insects
1988 33 1.5 S 8V |
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
|
| Back to top |
|
|
icky
Alfasud
Joined: 20 Mar 2003
Posts: 70
Location: Lismore NSW Australia
|
| Posted: Sat Jan 31, 2009 12:11 am Post subject: |
|
|
Al,
With the fuel injection, does the fuel tank and lines get pressurised?
Could be perished rubber seals on the fuel cap????
Cheers
_________________
Specialization is For Insects
1988 33 1.5 S 8V |
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
|
| Back to top |
|
|
lee16v
16 Valve
Joined: 29 Jun 2005
Posts: 1429
Location: Devon, UK
|
| Posted: Sat Jan 31, 2009 12:28 pm Post subject: |
|
|
| Have you checked the throttle body balance Al? Mine used to bog down when cold really bad until I adjusted it. |
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
| Posted: Sat Jan 31, 2009 8:45 pm Post subject: |
|
|
| lee16v wrote: |
| Have you checked the throttle body balance Al? Mine used to bog down when cold really bad until I adjusted it. |
hey lee, yup i did that not to long ago with a synchrometer
I have new rotor arm and dizzy cap, i will fit them tomorrow morning and see if that helps.
Dirty injector, wouldn't it happen all the time though?
Another symptom is that when starting it idles really low and then very slowly starts to rise to proper idle speed after about 30 secs, idle valve? I was thinking of cleaning it with wd40. Dont think the idle valve has anyhting to do with bogging down when cold under load?
_________________
x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
| Back to top |
|
|
Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
|
| Posted: Sat Jan 31, 2009 10:02 pm Post subject: |
|
|
Hi
The system needs high fuel pressure for the car to start, so not going to be a case of the fuel draining away.
That said, my P4 does a similar thing sometimes. Starts and idles fine, accepts throttle no problem, but regularly stalls once I have reversed out of the drive and go to change to first.
All the best
Keith
_________________
I owe, I owe, its off to work we go.
Bimota Forum
Stafford Christmas Lights
 |
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
|
| Back to top |
|
|
Admin
Site Admin
Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK
|
| Posted: Thu Feb 05, 2009 12:06 am Post subject: |
|
|
Hi
Only time it does it to me is having reversed out of the drive. Start it and leave it idling for a bit before reversing and it is fine.
Probably does need the throttle bodies balancing though.
All the best
Keith
_________________
I owe, I owe, its off to work we go.
Bimota Forum
Stafford Christmas Lights
|
|
| Back to top |
|
|
BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
|
| Posted: Thu Feb 05, 2009 12:45 am Post subject: |
|
|
hey keith,
I have already balanced the throttle bodies not to long ago. Changing the dizzy cap and rotor arm made no difference, i have to feather the throttle.
I have now bug erd up my idle valve lol, but it still idles and i still have to feather the throttle,,, go figure.
_________________
x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
|
| Back to top |
|
|
|
