Question about 2002 Ford F150 Regular Cab

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Will not start. Got jumped. Left running for approx. 30 minutes while driving it around the block. Park and turn engine off. Try immediately to start again. Will not start. Is it the Battery or Alternator??

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I say battery. usually a light on the dash will come on if the alternator is faulty. it sounds like the battery just wont hold a charge anymore.

Posted on Oct 05, 2010

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Start engine and then disconnect neg battery lead ,if engine stops its alternator and if it keeps going its the battery

Posted on Oct 05, 2010

  • seth_barber1 Oct 05, 2010

    battery lead? like the connecting itself??



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Car always starts in morning.but when you park and leave it for 2o minutes it cranks but isnt getting fire to plugs.i pulled one and checked that.iam sure it is electrical.what could it be?

Jim, this may be something I call VaporBlock:

Try several things:

When you've started the car (in the morning) let it idle (or drive it around the block a couple of times or so -- to get it warmed up -- I mean HOT) then turn if OFF;
and, wait 10 minutes - then try to start it...

IF it starts after the first 10 minute; then, it is NOT VaporBlock, and you'll need to drive it to a mechanic.

I this doesn't start, wait 30 (additional) minutes - then try to start it...

IF it doesn't start the after the first 10 minutes or 30 minutes; then, you may have to wait and hour -- and try it again, because you have VaporBlock.

You will have to find the "sweet-spot" of time to wait before trying to start it, or take it to a mechanic to get this issued fixed.

I used to pack my carburettor with snow to cool it down when I really needed it start again in a hurry!

I do hope this helps...


Jan 12, 2016 | 1997 Honda CR-V

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Wipers won't turn off

The wiper motor is defective and needs to be replaced. Inside the wiper motor is a "Park Switch". When you turn the wipers off, the park switch sends a signal to shut the wipers off. If the park switch fails to operate then the wipers will continue to run, unless the ignition key is turned off. You will also need to inspect and test the charging system. Where you had no issue before the rain, you may only need to charge the battery. After the battery is charged it should be load tested, to be sure that it is fine. Also test the alternator and make sure that it is charging correctly (@14volts). If you need more information please write back. Good luck.

Mar 21, 2014 | 1993 Chrysler Lebaron

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Oil change tech says my idle relearn needs fixing on my 2001 Yukon XL...can my husband do this?

{: ) Anytime the powertrain control module (PCM) or the battery is disconnected, the PCM loses power, or the PCM is reprogrammed, the PCMs learned idle position is lost. The engine idle is unstable when the learned idle position is lost. For a 2001 Yukon XL, you can try these steps: Automatic Transmission
  1. Turn OFF the ignition.
  2. Restore the PCM battery feed. ( IF it was disconnected)
  3. Turn OFF the A/C controls.
  4. Set the parking brake and block the drive wheels.
  5. Start the engine.
  6. Ensure that the engine coolant temperature is more than 80°C (176°F).
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  8. Allow the engine to idle for 5 minutes.
  9. Shift the transmission into Park.
  10. Allow the engine to idle for 5 minutes.
  11. Turn OFF the engine for 30 seconds.
Manual Transmission
  1. Turn OFF the ignition.
  2. Restore the PCM battery feed. (IF it was disconnected)
  3. Turn OFF the A/C controls.
  4. Set the parking brake and block the drive wheels.
  5. Place the transmission in Neutral.
  6. Start the engine.
  7. Ensure that the engine coolant temperature is more than 80°C (176°F).
  8. Allow the engine to idle for 5 minutes.
  9. Turn OFF the engine for 30 seconds.
After the procedure, you can do testing and observations. If unsuccessful, you may repeat the steps.
Also, the best time to relearn idle is after a throttle body clean (from carbon deposits)

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My 1992 Jeep Cherokee Laredo is acting like it DOES have an impact sensor. Even the connectors for bridges are causing the engine to stop. Power is still on (lights, heat, gauges). I have to struggle to...

Sounds like a loose connection, positive or ground. When problem is ongoing, jump starter relay, load side, the load side is that line with arrowhead, unplug relay, use jumper wire between those two terminals on left side of diagram. The starter motor should crank. If you try that make sure tranny is in park or neutral and parking brake is set. If it cranks with jumper but won't otherwise, have to check control side of relay, right side in the picture. That top wire is voltage from ignition switch, bottom wire is ground.
starter relay-n554jrrfwke34dmyum3hljpz-5-0.jpg

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2001 Camry Often Won't Start When Hot Outside Unless Jumped

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