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Anonymous Posted on Nov 01, 2017

TDI Jetta Hard To Start in Cold Weather!

On cold mornings my 2005.5 Jetta TDI is hard to start. I glow the plugs then turn the key to start the engine. If I miss the first start I have to hold the accelerator to the floor and crank. Eventually the car will start. The car just returned from a very thorough check up, and no code errors. Anyone out there having similar problems?

1 Answer

aceteck

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  • Expert 43 Answers
  • Posted on Nov 01, 2017
aceteck
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Run the plug's a couple time's instead of one. For an example on my work truck I run the plugs 3-5 even more depending the outside temp. Also I don't crank more then 20 second's. This work's even in extreme temp's such as -25F. And if you don't have the patience for this there's always starting fluid.

5 Related Answers

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Anonymous

  • Posted on May 19, 2008

SOURCE: Golf GT Tdi 2001 Turbo problem

may be a build up of carbon, there are cleaners for your system to clear out carbon deposits and burn higher octane fuel and give it a good run.

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Anonymous

  • 350 Answers
  • Posted on Oct 17, 2008

SOURCE: Golf TDI 1998 problem with cold start

hi change the glow plugs and no its not normall there should be no air in the system it is either sucking air or it has not been bled properly last time system was worked on usually when changing the fiter check the whole system for signs of leaks if non found bled the system until you get rid of them yates210456

PK in Dallas

  • 5 Answers
  • Posted on Oct 21, 2008

SOURCE: 03 VW Jetta TDI

I realize it's a little late in this game but I had a similar problem with my 2003 TDI. Sometimes it just wouldn't start, Dealer came and picked it up once to replace the battery under warranty and did all sorts of diagnostics to no avail. My brother suggested the ignition switch, so I watched it for several weeks and sure enough, new switch under warranty, problem gone for 4 years now.

Anonymous

  • 84 Answers
  • Posted on Oct 31, 2008

SOURCE: 2000 vw jetta tdi glow plug problem ?

Ok , ok. Give me some more information and we'll solve this. We're talking about a jetta TDI 2000 with an ALH engine code I figure.
#1 Do you have an faults recorded in the ECM like a check engine.
#2 Are you using synthetic oil 5W40 preferably Castrol?
#3 How old is your fuel filter?

alicantecoli

Colin Stickland

  • 22516 Answers
  • Posted on Nov 05, 2008

SOURCE: 2002 Jetta TDI has no power to glow plug buss at startup

replace the relay but check connections first as often connection get hot and corroded.failing which buy a push button switch use a relay and and some heavy wire to and from relay to the heaters and work them manually.you could try seperating the relay and cleaning the connections inside.

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Related Questions:

2helpful
3answers

Will not start in cold weather. Starts great if temperature is above 20 degrees. New battery and no problem found by mechanic.

There is a 5th injector called the cold start injector, that is electrically controlled off the starter. You can easily unscrew it while still attached to hoses and wires, and watch it squirt. You can also verify it is getting voltage with a test light or meter. There is also a thermal timer for it that could be bad and preventing current from the starter.
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My car didn't start one morning (cold morning) I

glow plugs have absolutly nothing to do with the car not going over 20 mph. sorry, but you gotta keep on em. at a guess i would say it was due to them doing a t-belt and not setting the timing right somehow. but that's just a guess.... while I love my TDI, the service and parts at most VW dealers are at the bottom of the list
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My 2002 Jetta TDI seems to be having a tough time

yes glow plugs have a lot to do with engine having tough
time in cold weather. before replacing glow plugs
check relay and fuses.
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Hard to start gt tdi golf

might need new glow plugs
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2004 jetta/diesel engine/hard start cold

Have you checked all of your vacuum hoses for leaks? Any vacuum leak, even intake manifold or throttle body gasket, will cause an engine stall right after starting. Likewise with a fuel pressure problem. If you aren't getting voltage, maybe whatever switch starts your glow plug cycle(either turning ignition on or opening driver door, depending on model) is defective, or any of the wiring of the circuit. It's a cheaper guess.
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2002 Volkswagon Jetta won't start in cold weather

well will it start using a little shot of starting fluid ? if so you might have a weak pump . try this and see . thanks Jerry
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Golf TDI 1998 problem with cold start

hi change the glow plugs and no its not normall there should be no air in the system it is either sucking air or it has not been bled properly last time system was worked on usually when changing the fiter check the whole system for signs of leaks if non found bled the system until you get rid of them yates210456
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