Author Topic: Terrible starting issues in cold weather.  (Read 3329 times)

January 30, 2010, 05:00:43 pm

Sixdown

  • Newbie

  • Offline
  • *

  • 10
Terrible starting issues in cold weather.
« on: January 30, 2010, 05:00:43 pm »
My 85 Jetta Diesel has issues starting in all weather below 45 degrees Fahrenheit.  I just tried starting it in 15 degree weather and ran down the battery trying to start it, which is what usually occurs and I have to keep jumping it (The battery is new).  Once it starts, if it does, it smokes like hell for a few minutes and then runs perfectly.  I have used the cold-start knob every time.

What is the problem with my car?  Injection timing?


1985 VW Jetta Deluxe 1.6 NA

Reply #1January 30, 2010, 05:16:06 pm

Vincent Waldon

  • Global Moderator
  • Veteran

  • Offline
  • ****

  • 3255
    • My collection of HOWTOs
Re: Terrible starting issues in cold weather.
« Reply #1 on: January 30, 2010, 05:16:06 pm »
If you're getting really good cranking speed your battery, starter, and the connections in between are probably fine.

The usual two suspects of "starts hard when cold, smokes like a chimney, fine when warm" are the glowplug system and timing...I'd say 80/20 in favor of the glowplugs.  ;)

Glowplug troubleshooting info here:
http://vincewaldon.com/index.php?option=com_content&task=view&id=41&Itemid=28

Checking/setting timing info here:
http://vincewaldon.com/index.php?option=com_content&task=view&id=24&Itemid=28
Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #2February 03, 2010, 04:19:10 pm

smutts

  • Veteran

  • Offline
  • ***

  • 720
  • Personal Text
    ClackClackClackClackClack
Re: Terrible starting issues in cold weather.
« Reply #2 on: February 03, 2010, 04:19:10 pm »
Quote
The usual two suspects of "starts hard when cold, smokes like a chimney, fine when warm" are the glowplug system and timing...I'd say 80/20 in favor of the glowplugs.  Wink

X2 ;)

Reply #3February 05, 2010, 10:24:09 am

Op-Ivy

  • Veteran

  • Offline
  • ***

  • 514
Re: Terrible starting issues in cold weather.
« Reply #3 on: February 05, 2010, 10:24:09 am »
I was having hard cold starting issues recently as well. Turns out two of my glowplugs were dead. The buggers...
1990 TD Jetta - 490,000Km

 

S-PAutomotive.com