Golf 3 98
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Golf 3 98
Hello everybody,
I'm having a horrible week with my golf. It first started off not starting every now and then but on Saturday it turned and turned until the battery went flat.
I charged the battery and it started first time, I had to recharge the battery on Sunday to drive again. On Monday it was the same thing, but then started jerking and not driving smoothly. On my way home on Tuesday I stopped on a hill and switched off the engine, tried to start it but never work. I tried to run start it but it never worked.
Since then, I've changed the coil pack and lead cables, what else can I do if diagnose why it won't start?
It turns but nothing.
Any help would be much appreciated.
I'm having a horrible week with my golf. It first started off not starting every now and then but on Saturday it turned and turned until the battery went flat.
I charged the battery and it started first time, I had to recharge the battery on Sunday to drive again. On Monday it was the same thing, but then started jerking and not driving smoothly. On my way home on Tuesday I stopped on a hill and switched off the engine, tried to start it but never work. I tried to run start it but it never worked.
Since then, I've changed the coil pack and lead cables, what else can I do if diagnose why it won't start?
It turns but nothing.
Any help would be much appreciated.
- Rascal69
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Re: Golf 3 98
have you checked/tested the battery and alternator?
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Current: 2019 Fortuner 4x4
Ex: 2005 E55 AMG
Ex: 1998 BMW M3
Ex: 2011 REVO 2 Focus ST - 208wkw & 465nm's (FRnR)
Ex: 1994 E36 328i Track Car (Budler Motorsport built)
Ex: 2011 REVO 2 Mk6 GTI DSG - 200wkw & 452nm's (KAR)
Ex: 2007 REVO 2+ S3 - 12.7s @ 176km/h (Tarlton 2010) and 224km's on 1km (ODI)
Ex: 2006 Velo 1.6i | 2008 Velo 1.6i | 2005 Velo 1.4i | 2006 Polo 1.6i | 2012 Polo TDI | 2004 W203 C200K
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- panic-mechanic
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Re: Golf 3 98
do you have spark and do you have fuel?.
Stephan van Tonder - Jhb - Putfontein Benoni
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- dubz-on-drugz
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Re: Golf 3 98
Check distributor
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Re: Golf 3 98
So, I managed to get it started. First figured out the ECM relay is not working, it won't start with the key, however, we started it by bridging the starter motor.
It run for a good 5 minutes and then stalled.
The stater motor wire has continuity but doesn't send 12v when switched on at the key switch, apart from a new battery and ecm relay, I don't know what else to do or get.
I checked the fuel line and replaced the fuel filter and there is spark.
I've bought a new coil, lead cables and a starter.
Your thoughts are much appreciated.
It run for a good 5 minutes and then stalled.
The stater motor wire has continuity but doesn't send 12v when switched on at the key switch, apart from a new battery and ecm relay, I don't know what else to do or get.
I checked the fuel line and replaced the fuel filter and there is spark.
I've bought a new coil, lead cables and a starter.
Your thoughts are much appreciated.
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Re: Golf 3 98
Have had the car diagnosed and came up with the ECU being the problem.
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Re: Golf 3 98
I reckon you should rather have your ignition switch replaced first - if it doesn't solve your existing problem, it sure as hell will save you a lot of trouble in the future as it WILL give up eventually.
BTW, this was the only problem I had on my 99' Jetta CLX in the 9 years of ownership.
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Re: Golf 3 98
I had the ECU tested and the guy said there was nothing wrong.
I tested the starter motor relay and it is getting 12v, we tested the wire that leaves the fuse box housing and it hasn't got 12v.
We (Ballie and I) think it's the fuse box. The guy who tested the ECU said he thinks it's the distributor (we don't think so because the car switched on when the starter was bridged), he said I should bring it to him and he will put his own testing parts on, get it started and then work backwards.
Pretty stumped on what to do next
I tested the starter motor relay and it is getting 12v, we tested the wire that leaves the fuse box housing and it hasn't got 12v.
We (Ballie and I) think it's the fuse box. The guy who tested the ECU said he thinks it's the distributor (we don't think so because the car switched on when the starter was bridged), he said I should bring it to him and he will put his own testing parts on, get it started and then work backwards.
Pretty stumped on what to do next
- Jetta2
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Re: Golf 3 98
As Supervan said..... ignition switch. Had a similar issue on a buddy's Mk3 Jetta and he sold it 6 years after we replaced the ignition switch and it was still perfect.
Ryan Demoser
1996 Mk3 Golf VR6
2017 Caddy Maxi Crew Bus 2.0 TDI
2013 Aprilia RSV4 track toy
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1996 Mk3 Golf VR6
2017 Caddy Maxi Crew Bus 2.0 TDI
2013 Aprilia RSV4 track toy
2021 Aprilia RS660 road bike
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Re: Golf 3 98
Hmm will search for one and see.
Thanks guys
Thanks guys
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Re: Golf 3 98
Even though the ignition switch is sending 12v to the relay?
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Re: Golf 3 98
The engine started to jerk while driving, and you had to recharge the battery at one stage, and when you got it started, it stalled after 5 min.
These factors make me think that besides the ignition switch, the charging circuit may not be working properly. I agree with Rascal, you should check it out. If you get the engine running, there should be about 14V across the terminals of the battery. If you switch on the lights, cabin ventilation and window defroster, it should still be at least 13.5V on a fast idle.
Regarding the ignition switch, remember that
... it must not only send 12V to the starter solenoid, but also to the ECU (both during starting and normal running).
... if the switch has a bad contact, you may measure 12V on the open circuit, but this doesn't mean that there is sufficient voltage under actual operating conditions. That solenoid draws at least 10A, possibly 15-20A.
These factors make me think that besides the ignition switch, the charging circuit may not be working properly. I agree with Rascal, you should check it out. If you get the engine running, there should be about 14V across the terminals of the battery. If you switch on the lights, cabin ventilation and window defroster, it should still be at least 13.5V on a fast idle.
Regarding the ignition switch, remember that
... it must not only send 12V to the starter solenoid, but also to the ECU (both during starting and normal running).
... if the switch has a bad contact, you may measure 12V on the open circuit, but this doesn't mean that there is sufficient voltage under actual operating conditions. That solenoid draws at least 10A, possibly 15-20A.
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
- - - - - - - - - -
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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
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Re: Golf 3 98
Hey guys, thank you very much.
I will check the ignition switch, battery needs to be replaced too.
I will check the ignition switch, battery needs to be replaced too.
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Re: Golf 3 98
I managed to get it started via the starter motor. We realised that it was over fueling and that's why it wouldnt start, unpluged the petrol pump and it started and ran. I read that the petrol can mix with the oil due to over fueling, so I have drained and changed the oil.
Any ideas on what to check to see what could be causing it to over fuel?
Any ideas on what to check to see what could be causing it to over fuel?
- panic-mechanic
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Re: Golf 3 98
Change the relay numbered 35 on the fuse box. Often they die and cause all kinds of issues. It's the relay for the ECU.
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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Re: Golf 3 98
Okay, I changed the ECM relay. Are they different?
- panic-mechanic
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Re: Golf 3 98
same thing.
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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Re: Golf 3 98
Thanks Panic. I did replace it last week, could it be the MAP sensor? We were able to get the car running without the petrol pump, map sensor, let it run for a while then put the pump back and then sensor, idled very rough though and only been able to do that once.
- panic-mechanic
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Re: Golf 3 98
I could be 100's of things. Guessing is never the right way. You need to fault find via vcds and looking at individual measuring blocks for correctness.
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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Re: Golf 3 98
Would a diagnostic determine any Vcd codes?
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Re: Golf 3 98
I had a diagnostic done, i never saw the code/s that came up but the guy said it was the ECU or ECU wiring.
I tested the ECU and it was fine
I tested the ECU and it was fine
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Re: Golf 3 98
I changed the water pump sensor and it runs fine.
Taking it to do the switch.
Taking it to do the switch.