newbug
Member
- Joined
- May 27, 2009
- Location
- Jersey City, NJ
- TDI
- 1984 Jetta, 1999 Beetle, 2002 Jetta, 2005 Passat Wagon
I just had a major problem with my car not starting.
It started about a week ago took several attempts but it started ran rough til it warmed up plus smoked a lot.
113,000 miles on 2002 VW Jetta TDI.
The last 2 days (April 18, 19, 2018) very hard starting and yesterday wouldn't start at night no matter what I tried. Killed the battery too.
So I charged it up and tried again finally got it to start after turning the key on and off maybe 20 times to get the glow plugs hot. Started and ran but 1 hour later no good.
So today (April 20, 2018) I changed the 109 relay as I always have a spare after breaking down in my 1999 Bug.
No good same thing.
Put the Vac Com on it no codes except for door and windows from the battery going dead while trying to start.
I also removed the plug from the temp sensor under the vacuum pump and when turning on the key the Glow Plug light stayed on for about 10 seconds but the car would not start even after 4 attempts, so I put the plug back on another strike out.
Called Ross-Tech and after telling them all I did no solution was found.
So I as a last resort removed all the Glow Plugs.
I tested them with a Fluke Ohm meter and they all had less than 1 ohm resistance. I then tested my brand new Bosch spares and same thing.
So the next thing I did was use my 20 amp variable supply and tested each Glow Plug raising the voltage from zero to 13 volts and checking the amps they used.
The amps were 6 and lowered to 4.5 after the Glow Plug turned red.
The last Glow Plug Read zero volts and zero amps.
So I rechecked the other one and the new ones and all were about the same.
I rechecked the one that read Zero and same thing which meant it was shorted under voltage and I believe was killing the voltage and current to the entire 4 Glow Plugs. Funny but no Codes?
So I put in 4 new Bosch Glow Plugs and the light came on and off but the car started right away I tried several times later after the coolant temp dropped and it started again so as of now all looks good.
Strange thing also I was checking the TDI timing and even with a 193 degree on gauge and 85.9 Celsius said engine not warm enough 80c should have been enough maybe the shorted Glow Plug was screwing up the ECU.
I will check it later but now it starts as soon as you turn the key no cranking.
Hope this helps.
Today 4-21-2018 and last night 4-20-2018 the car started right up maybe 1 turn of motor several times at about 35 degrees no more problems.
Looks like all is solved.
It started about a week ago took several attempts but it started ran rough til it warmed up plus smoked a lot.
113,000 miles on 2002 VW Jetta TDI.
The last 2 days (April 18, 19, 2018) very hard starting and yesterday wouldn't start at night no matter what I tried. Killed the battery too.
So I charged it up and tried again finally got it to start after turning the key on and off maybe 20 times to get the glow plugs hot. Started and ran but 1 hour later no good.
So today (April 20, 2018) I changed the 109 relay as I always have a spare after breaking down in my 1999 Bug.
No good same thing.
Put the Vac Com on it no codes except for door and windows from the battery going dead while trying to start.
I also removed the plug from the temp sensor under the vacuum pump and when turning on the key the Glow Plug light stayed on for about 10 seconds but the car would not start even after 4 attempts, so I put the plug back on another strike out.
Called Ross-Tech and after telling them all I did no solution was found.
So I as a last resort removed all the Glow Plugs.
I tested them with a Fluke Ohm meter and they all had less than 1 ohm resistance. I then tested my brand new Bosch spares and same thing.
So the next thing I did was use my 20 amp variable supply and tested each Glow Plug raising the voltage from zero to 13 volts and checking the amps they used.
The amps were 6 and lowered to 4.5 after the Glow Plug turned red.
The last Glow Plug Read zero volts and zero amps.
So I rechecked the other one and the new ones and all were about the same.
I rechecked the one that read Zero and same thing which meant it was shorted under voltage and I believe was killing the voltage and current to the entire 4 Glow Plugs. Funny but no Codes?
So I put in 4 new Bosch Glow Plugs and the light came on and off but the car started right away I tried several times later after the coolant temp dropped and it started again so as of now all looks good.
Strange thing also I was checking the TDI timing and even with a 193 degree on gauge and 85.9 Celsius said engine not warm enough 80c should have been enough maybe the shorted Glow Plug was screwing up the ECU.
I will check it later but now it starts as soon as you turn the key no cranking.
Hope this helps.
Today 4-21-2018 and last night 4-20-2018 the car started right up maybe 1 turn of motor several times at about 35 degrees no more problems.
Looks like all is solved.
