Hi guys
Not sure if blurp is the right word
My issue is when driving and car at normal temp the idle is high like 1200rpm how do i get it back down? Base plate fine vacuums seem fine
Also when driving for a while and i switch the car off the carb like still has life where it wants to start again then switches off..like it just get a last breath and switches off
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Jetta 1.6 carb blurps when ignition off
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Re: Jetta 1.6 carb blurps when ignition off
This "overrun" or "after-run" (trying to translate from German here) tends to happen if the idle cut-off solenoid valve is not working properly. The carburetor still aspirates fuel, which then ignites (detonates) on glowing residues in the combustion chambers.
Does the carb have an automatic or manual choke? I'm wondering whether the choke is not fully opened, causing the high idle and the after-run.
Does the carb have an automatic or manual choke? I'm wondering whether the choke is not fully opened, causing the high idle and the after-run.
Mark R.
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2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
- - - - - - - - - -
- - - - - - - - - -
2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
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- panic-mechanic
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Re: Jetta 1.6 carb blurps when ignition off
Yup stuck choke or cutoff solenoid not working.
If the choke is not closed then adjust the idle screw down to the rpm drop.
If the choke is not closed then adjust the idle screw down to the rpm drop.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
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- Cadet
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Re: Jetta 1.6 carb blurps when ignition off
Its a manual chokethe one you pull in the car...
This happened only after i serviced the car regular oil plugs filter service the car never want to idle i seen somehow that solonoid thing at the back of the carb with a yellow wire running to the coil was loose off the carb so i tightened it but the car still never idle the air screw i think its called was closed so i opened it a bit and it idled but idling high and started doing this when switching the engine off
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This happened only after i serviced the car regular oil plugs filter service the car never want to idle i seen somehow that solonoid thing at the back of the carb with a yellow wire running to the coil was loose off the carb so i tightened it but the car still never idle the air screw i think its called was closed so i opened it a bit and it idled but idling high and started doing this when switching the engine off
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- Cadet
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Re: Jetta 1.6 carb blurps when ignition off
If i try adjust that idle screw it either goes too high or low that it cuts off doesn't matter whether engine is cold warm or hotpanic-mechanic wrote:Yup stuck choke or cutoff solenoid not working.
If the choke is not closed then adjust the idle screw down to the rpm drop.
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- panic-mechanic
- Panic's Place
- Posts: 26715
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Re: Jetta 1.6 carb blurps when ignition off
Check the power to that wire and makes sure the earth from the carb to the tappet cover is in place. if in doubt remove the cutoff solenoid and hold it against the engine - let somebody operate the key on/off and see that it moves.
Also try some punctuation in you sentences.
Also try some punctuation in you sentences.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
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- Cadet
- Posts: 484
- Registered for: 11 years 1 month
- Car Make: VW
- Car Model: MK2 CSL
- Location: Florida
Re: Jetta 1.6 carb blurps when ignition off
Ohkpanic-mechanic wrote:Check the power to that wire and makes sure the earth from the carb to the tappet cover is in place. if in doubt remove the cutoff solenoid and hold it against the engine - let somebody operate the key on/off and see that it moves.
Also try some punctuation in you sentences.
The solenoid clicks if the key is on and i play with it at the coil.
The ground to the tappet cover is on securely.
I will remove and see if the solenoid moves
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