Question about Ford F-150

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2000 ford lightning svt would a bad coil pack cause my truck to cut out at high rpm ????

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  • jessethewren Jul 07, 2010

    thanks man i appreciate you...



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Your computer controls top speed and rpm's so you don't go past rated rpm range and blow the engine. It's a good thing, as I've thrown rods out the side of blocks, and broken cranks, due to serious over-revving. Could also be a fuel starvation issue, if it's associated with a complete power loss at various high rpm's, (power comes back after you let off it for a second or two). But, what you're describing sounds like the ignition limiter cutting spark every other firing, which happens at the same approximate rpm, (6500-7000), to control rpm limit.

Posted on Jul 03, 2010

  • jessethewren Jul 03, 2010

    Im not talking race rpm im talking about 3000 to 4000 rpm so what do you sugest ? I have a new fuel pump and intake gasket maf and egr so could it be a coil pack

    INDIRA KUMAR Jul 03, 2010

    Yes it must be an coil pack.



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2008 ford f-150 -misses or cuts out at 40 - 50mph and between 1000 - 2000 rpm

Hey there. I'm not an expert on Ford's, but I had a very similar issue with my Mercedes S550 AMG. I'm hoping my experience will help you. What caused this issue on my car was two things. There was an oil leak running down a wire harness that caused the cam-shaft positioning sensor to mis-read engine data, that caused another sensor (that was trying to correct the problem internally) to go bad. That sensor was the Crank-shaft positioning sensor. This drove me nuts... I replaced the plugs, coil packs, plug wires and a few other smaller things until I gave up. Towed it to the "
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Nov 30, 2015 | 2004 Lincoln Aviator

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Getting real bad fuel economy and rpm doesnt seem right as it shifts and gains speed

please have your ignition coil pack checked. the coils go bad often on ford cars/trucks. if thats ok, then have your catalytic converter also checked. if its clogged, then it will cause the symptoms you describe.

hope this helps

Feb 12, 2014 | 1999 Ford Explorer

1 Answer


it was related, ignition system..
you have to check ignition coil(pack).
improper distribution engine runs rough.

May 27, 2013 | Cars & Trucks

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2000 ford explorer Have a p0305 code started a while back when accelerating to pass a car the truck would **** and the check engine light would blink but once i take foot of the gas it would go back to...

A PO305 code is for a Cylinder #5 misfire code. This would definitely cause a lack of power when passing and would cause the check engine light to blink when you are into the throttle and then stop once you let off the throttle. This could be caused by a faulty coil pack or a bad spark plug for that cylinder. I dont know which engine you have in this vehicle, but if each spark plug has its own coil, you can try unplugging the coil pack for cylinder # 5 while the vehicle is running and if it changes the way it runs then the coil pack is probably good, but if there is no change when you unplug the electrical connector, there is a good chance the coil pack is bad. It is not unusual for these coil packs to burn out.

Hope this helps... if there is anything further i can help you with, please feel free to ask.

Sep 14, 2011 | 2000 Ford Explorer

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2000 ford focus I have to keep replacing the coil pk. also I have heat when I am driving but none when sitting. already replaced the therm. and flushed it, replaced lower hose to rad. what is causing...

motorcraft parts are recomended, though after market high end coils would also work, accel,MSD and such, when you replace are you getting them with a new resistor, as this can cause packs to blow also.
as for your heat not blowing check the water pump, sounds as though it may have broken free from drive internally and only when high rpm is creating enough friction to turn the internal fan.

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Zetec 1.8 16v,when reved above 2000 rpm's all power goes and coughs and splutters badly,have already changed plugs leads coil pack and airflow meter and its still the same

Could be a fuel problem, change fuel filter, air filter if old, check fuel pump pressure. Also check battery to motor and battery to body ground for corossion. Check condition ofmotor to body ground strap for corossion. Bad grounds can cause all sorts of problems.

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Car cut out and will no longer start. diagnostics showed faulty coil ignition pack which was replaced but still no joy. any suggestions? further diagnostics do not show any electric fault. timing ok.

Check all conections to the coil pack, check to insure all spark plug wires are on, and make sure it is getting fire. With the engine not starting, the check engine light may not come on to produce a code for the diagnostics.

Feb 12, 2010 | 2002 Ford SVT Focus

2 Answers


Your ignition is what supplys your spark pluggs with electricity in order to creat combustion in your engine. Most older cars have distributers, if you drive a focus with a zetec it will have a coil pack. I have a 2002 Focus SVT that I upgraded the ignition system to a full racing system for around $200. What you need to change is the coil pack, spark pluggs and spark plugg wires. You only have to remove about four bolts on the coil pack and it just pulls out.

Jun 16, 2009 | 2002 Ford SVT Focus

1 Answer

04 explorer running bad

If this is a coil pack ignition system (no spark plug wires, just a coil pack on each plug), this sounds like you may have a coil pack that is going bad. Do you have a check engine light on? You might also think about having someone take a look at your fuel injectors, if one or more isn't firing this will cause a miss that will sometimes seem like a faulty spark plug. Hope this helps.

Feb 19, 2009 | 2004 Ford Explorer

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