Why won t a diesel start in the cold?
Metal cylinder walls become very cold when the temperature drops, so most vehicles are harder to start in cold weather. Because diesel engines require much higher temperatures to fire the fuel, they’ve always been harder to start in cold weather than gasoline-powered vehicles.
Do you have to plug in a volkswagen diesel?
Diesel Engines Don’t Have Spark Plugs Diesel molecules are different than regular gasoline. Due to this, diesel engines work differently from gasoline engines. Engine heaters are required for diesel engines to work in cold weather, and they need electricity to operate.
How long will a TDI engine last?
The TDI engine may last up to 500k miles but everything around it won’t. And if you depend on VW dealerships to perform the repairs, plus the added premium of diesel fuel over high octane gas, the long term cost savings will erode. For example, the Turbocharger is good for 100 to 150k miles.
Why is my Jetta hard to start when cold?
My Jetta Mk4 TDI engine is hard to start in the mornings when the temperature is down around 16° F. When you turn on the key it goes like it’s going to start, but the idle remains down. I continue starting for even up to half an hour eventually idle goes up and start. I don’t know what exactly could be the problem.
What should I look for when starting a Jetta?
If you start easily with a warm battery it would be worth checking the CCA (cold cranking amps) rating on the battery and the actual output from the battery when it is cold. Measure the starter draw (probably at a auto parts store or an auto electric shop) to see if the draw is in the expected range.
What happens if you start a TDI in cold weather?
First time just diesel- no additive. Got about 35 miles then it died going down the road. Second time Power Service treatment (plenty strong) got about 40 miles and that was it. Car started coughing and cutting in and out- eventually stalled completely and both times resulted in a tow.
Why does my car not start in cold weather?
You just replaced the timing belt and now it won’t start. You just had something in the fuel system open or ran out of fuel and now it won’t start. You have a DSG transmission, and when it’s really cold out, the car won’t start. You have a >2004 and nothing else here fits but it could be fuel related.