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It is showing code p1506 it is hard to start when cold and harder to start after warmed up but after warmed up it idles and run fine

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: hard to start and loping at idle

check the air filter and spark plugs and wires

Posted on Nov 12, 2008

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  • 1 Answer

SOURCE: F250 Ford 7.3 L Powerstroke Hard to Start Cold

I have a 2000 F250 with Powerstroke and my buddy has a 02 with same engine. Both of us have had the same problem. There are two coils (look like starter coils) on top of the engine that can be seen from the passenger side of the truck. The shorter of the two, has to do with supplying voltage to the glow plugs. When this coil gets older, it breaks down causing a higher resistance in the circuit. Which reduces the volts that the glow plugs see. In turn resembles a problem with the plugs. My buddy and I changed the coils and both trucks start like new. The part cost $80-$90. and can be changed in less than 5 minutes. Glow plugs are a lot bigger job and more expensive.

Posted on Dec 02, 2008

  • 98 Answers

SOURCE: 06 f-150 5.4L low idle code and warm ac at idle.

should idle around 700

Posted on Jun 11, 2009

  • 2002 Answers

SOURCE: 2003 f250 diesel 6.0 hard start when cold, idles

It sounds like your preheat system is not working properly on the cold startup. Haynes has a Diesel Engine Repair Manual, part #10330 that will help you correctly diagnose and repair.
Battery volts at 13 is good but a fully charged battery should be close to 14.2. It would be a good idea to get the alternator output checked and a load test done on the batteries.
Hope this helps.

Posted on Jul 12, 2010

  • 14585 Answers

SOURCE: I have a 1998 Ford Explorer, 2wd, 4.0L SOHC 6cyl.

Check for vacuum leaks. this is the main cause for lean codes. Definitely not the coolant sensor. Let me know there are other things also.

Posted on Feb 14, 2011

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When the ac stops blowing cold at idle, the most common reason is not enough air flowing thru the radiator, or the radiator fan is not running and the only air flow is when the vehicle is moving.

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Misfires on cylinder number one with code,also code p1506.once it warms up vehicle runs fine


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Code P1506, 2002 ford taurus wagpn


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89 dodge shadow. hard start. normal idle cold, fast idle warm. sometimes it wont start until i hear fuel pump activate.


Hello,
The car may be hard to start because it may need a normal tune-up. If the spark plugs are pretty used, they will slowly stop burning as much fuel because the spark slowly gets lesser and lesser. On a cold day the fuel is harder to ignite with a small amount of spark.
Normal idle when its cold means that your cars idle is probably too high. If you lower the idle, the choke on a cold day will keep the idle a little higher until the motor warms and then it will kick back off. If the idle is too high, it will run very rich, smothering itself with fuel, and causing the idle to stay low. When the car warms, its creating better spark when its warm, and with the idle being too high its running at a fast idle.
The car wont start sometimes can be the cause of a few things. If the ground is bad on the fuel pump, it wont make a good connection sometimes for when you turn the key on, the fuel pump dont pump the fuel to the engine. Another one can be that your accessory switch can be loose going to the fuel pump. I think its your ground though. Good luck! Hope this helps.
Have a nice day. -Steve

Dec 06, 2009 | 1989 Dodge Shadow

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96 960 cold start problem


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most likely a coolant temp sensor, ambient temp sensor, Baro sensor, MAP/VAF sensor problem the fault codes will tell you

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