Question about 1996 Ford F150 Regular Cab

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CHECK ENGINE LIGHT ON BUT RUNNING FINE

Last thursday the 1998 f-150 would not start in extremely cold temperatures. thought it was the battery but later in the day it started fine, I did charge the battery last thursday, but this morning the check engine light came on. any suggestion?

thanks

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F the light is on steady it is prob one of the emission sysytem's like 02 sensor.. as long as light is not blinking ok to drive till fixed..

Clear light by: taking batt cable off for about 3 min and prees your foot on break while cable is off.. then put cable back on.. light will go off for a while but as soon as it sees the problem again it will come on

Posted on Jan 19, 2009

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I have a 2005 Jimmy It will not start in extremely cold weather the battery is fine it just keeps cranking but it doesn't seem to be getting fuel on extremely cold days. Plugged it into the compter which...


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Tip

10 Tips to Prep your Car for Winter Driving


Inspect your antifreeze while your engine is cold by using a tester to check the mixture for its freeze point. A 50/50 ratio means 50% distilled water and 50% antifreeze, which is sufficient in most climates, except in extreme cold. <br /> Have your charging system checked for free at any Advance Auto Parts store. Cold weather starts make the vehicle battery work much harder and getting stranded in the cold is no fun! <br /> Change your oil and oil filter. Clean, high quality engine oil goes a long way in protecting the motor in cold start situations. Use the oil recommended by the vehicle manufacturer. <br /> Visually inspect all lights; marker bulbs, tail lights, third level brake lights, especially headlights and driving lights. Daylight savings time requires bulbs to work longer hours. <br /> Tire Tread condition; check it yourself, or have it checked. Winter driving requires good traction in snow and ice. Quality tire tread sheds the snow, ice and road grime more quickly, providing better traction for improved safety. Check your tire pressure regularly, especially in colder temperatures. Follow the recommended PSI found on the driver's side door post for maximum traction. <br /> Visibility is key to your safety; make sure that your wiper blades are in top condition, to fully clear your windshield, and back window if the vehicle is equipped. Road salt and slush can jeopardize visibility. Use washer fluid containing de-icer and Rain-X Treatment on windows to avoid the chiseling of ice early in the morning. <br /> Inspect your engine's belts and hoses. Cracked, frayed or worn out rubber won't stand up to temperature extremes. Don't get stranded on your next trip because of a $10.00 belt or hose! <br /> Replace the Cabin Air Filter if the vehicle is equipped. Outside contaminants from Fall and Summer driving are stranded in the cabin air filter and running the heater on "high" in the extreme cold only sends the micro-particles deeper into the vehicle. <br /> Protect your vehicle's paint. Rain, snow and salt are extremely tough on paint. A tough coating of quality car wax will add another barrier in-between road grime and your vehicle's paint. <br /> Last but not least, prepare a roadside emergency kit including a flashlight with fresh batteries, a blanket, food bars, water bottles, cell phone, jumper cables, flares, Fix-a-Flat, HELP Sign, and a first aid kit.

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Reduced engine power warming came on yesterday, after driving in extreme cold temps, idled rough and the. started back up fine after sitting a few minutes. Drive today, in cold temps again, and drove...


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I have a 95 Ford F350 with the 460 motor. It started running fine when cold but after it warms up it starts to run rough, lose power, and runs REAL rich. I'm only getting a little more than 2mpg.


It Sounds like it is staying in the "cold start" routine. It also sounds like the diagnostic computer is not working right, because it must be rich and the O2 is not telling you a thing.

I would start by looking for a temperature sensor. You may have 2, with 1 being for the dash and the other being for the engine controls. You want to replace the temperature sensor for the Engine controls. This will help get it out of "cold start" routine.

Change your thermostat. The onboard computer does not monitor operating temperature.

Fuel pressure regulator. Have pressure checked.It could be forcing too much gas in each time an injector opens.

If you can not do this yourself, tow it in. At 2 mpg it may be cheaper to tow it than to drive any distance for repair. The Mechanics are going to need some gas left over in it to work on the engine.

Also turn on ignition and energize the fuel pressure, check for leaking fuel lines. Put on fuelcap locks if fuel drops when parked.

For this much of an extreme problem, I would like to know what you find wrong with it. I hope my solutions help.

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How to fix the wont start in extreme temperaturs


Extreme temps can cause all kinds of problems even with an otherwise well running vehicle.
To combat this, always have a fully charged battery with the highest cold cranking amp rating you can afford. Use the largest diameter battery cables you can find...Thin ones create resistance and eat up voltage before it reaches the starter and electronics.
Use a quality synthetic oil in the engine...It helps allow the engine turn free when cold.
Consider using a block heater if very cold temps are normal in your area.
Use 3oz of acetone per 10gal of fuel ...it evaporates faster than gasoline and enhances cold starts. (been doing that for years and never have had a system failure related to it's use)
Make sure your temperature sending unit is working properly. This is critical especially in extreme cold...the computer reads engine temp from there and if the sensor is a bit out of range, it can cause a slight lean condition that can make starting difficult.
And of course, make sure you have a good set of spark plugs...worn ones will work but the spark needs to jump further...In very cold temps this can lead to problems.
Likely, something I just mentioned will help. (unless you have other problems you did not mention)
Good luck

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1994 mazda protege 1.8 l auto trans won't start


It could be a faulty Engine Coolant Temperature sensor. It sounds like when it is cold, your computer is interpreting your signal from the ECT (or lack therof) as being at a certain temperature and not providing the right amount of fuel in order to start the engine when it is cold. Does the check engine light blink or flash at all?

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