Ask Experts Questions for FREE Help !
Ask
    kirkashlnd's Avatar
    kirkashlnd Posts: 1, Reputation: 1
    New Member
     
    #1

    Dec 7, 2008, 06:37 PM
    F 250 7.3diesel won't run in cold weather hard to start
    My truck is hard to start in cold weather . When it dose start it won't run long
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
     
    #2

    Dec 7, 2008, 06:49 PM

    . Fully charge both batteries. Diesels require strong batteries, particularly in winter.

    . Clean battery terminals and cables.

    . Check all underhood and underdash fuses with a test light or multimeter.

    . Check for diagnostic trouble codes.

    . Check engine oil level--ensure it's filled to the top line. This affects fuel pressure.

    . Check glow plugs, which are used to heat the fuel.

    . Check block heater, which is used to heat the engine.

    . Check fuel injectors. Take the valve cover off and look at the exhaust part of the injector when it is running. Each time the injector fires, you should see oil exhausting from it. If you see oil coming out, then the injector is good. When replacing a bad injector, take the glow plug out and crank the engine to get any oil out of the cylinder. If you don't, you could hydro-lock and bend a rod.

    . Purge fuel filter or fuel separator of water. Do this at least monthly--daily, if necessary. Water can be a big problem with diesels, particularly in the winter.

    . Use full-synthetic diesel heavy duty engine oil (HDEO). Installing a by-pass oil filter makes using top-quality synthetics very cost effective, when integrated with a used oil analysis (UOA) program. All engines run better on synthetics, particularly turbo diesels. Besides significantly improved engine life, turbo life, performance, and gas mileage, synthetics promote easier starting, by allowing increased cranking speed. This last factor is particularly important in cold weather. Synthetics are also easier on batteries and starter motors.

    http://www.mobiloil.com/USA-English/...uck_5W-40.aspx

    . Check turbo--it may be coking up or turbine blades may be bent. I would only use full-synthetic diesel heavy duty engine oil with a turbo.

    . Check/replace air filter. Diesels require lots of air--restricted air filters can bend turbine blades.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

92 honda accord hard to start when cold [ 20 Answers ]

Hi: I'm having a problem with my honda ,when I start it on the morning ,when is cold the car crank and start but stop after a second and then I started it again and I have to depress the gas to keep it running and the rpm goes up and down from 700 to 2000 rpm and I have to keep holding the gas...

7.3 f 250 diesel won't start when cold [ 2 Answers ]

I have a 97 f250 diesel. The truck won't start in cold weather unless it is plugged in. I replaced the glow plugs and it still won't start in cold weather unless it is plugged in. any advice on what the problem could be?

1990 7.3 hard start cold [ 1 Answers ]

7.3 hard starting when cold. Starts then dies have to jump then it will start after cranking a lot . After starts up will start rest of day got any clue? vinny

F250 7.3 power stroke hard starting in cold weather [ 1 Answers ]

I have a 2001 F-250 power stroke that is very hard starting in weather below 30 degrees. It coughs and coughs and cuts out. Sometimes it takes 15 to 20 tries before it smooths out. I have changed the glow plug relay switch twice in 6 months. The last one went in 2 days ago. When I keep the engine...


View more questions Search