no spark out of coil changed the coil pack still no spark on my 97 f150 4.2l v6

25

Asked by Sep 15, 2016 at 03:46 PM about the 1997 Ford F-150 XLT 4WD Stepside SB

Question type: Maintenance & Repair

13 Answers

21,120

Is there voltage to the coil with the key in the "on" position?

4 of 4 people found this helpful.
7,835

Check crank positioning sensor

1 of 1 people found this helpful.
25

yes there is power to the coil with the key turned on where is the crank positioning sensor?

1 of 1 people found this helpful.
7,835

Crankshaft sensor should be down and front of crankshaft mounted on timing chain cover

3 of 3 people found this helpful.
21,120

Since the coil is new, lets assume it is good and not bad out of the box. Have you tested the new coil to determine if you are getting a switching signal from the ICM? Check the net for how to check for switching signal, to long to explain here.

25

turning over but not getting spark to the plugs still after i just replaced the camshaft sensor

21,120

Have you tested the coil pack with an HEI spark detector? The tester is only about 15 bucks and looks like a spark plug. You can use the tester directly on the coil pack. This will go a long way in figuring out the problem. If you get no spark via the tester on both towers then the problem could be with wiring or connections or problems with the PCM. You have to determine if you are getting a switching signal from the computer.

25

i have an HEI spark detector and i checked it and there is no spark i did find a short in the wiring which i believe couldve caused all of this there was a wire melted and grounding out on my exhaust which was causing my PCM fuse to blow i fixed that and so far every fuse and sensor that that wire is connected to has been blown could that short have blown my PCM?

7,835

If it's coming out of the pcm yes, not if it's going into it. Are all fuses good now?

25

all fuses and sensors are good now and the wire that melted comes out of my pcm then to transmission i think going to check all the fuses again just to be sure

21,120

About all you can do to check the PCM is to check if you have power going to it and a good ground. That does not check the functions of the PCM to determined if they have been zapped. OBD codes 600 through 610 COULD indicate a fault with the PCM. Unfortunately, to check every function of the PCM it has to be connected to a simulator which will check each and every function. Auto parts stores cannot do this.

25

good news thanks to a friend at a parts store im gonna get a new pcm really cheap so i will replace my pcm with new one and update after thanks everybody for the help so far

21,120

YOu'll have to find someone to program it for you. It's not plug and play, but do let us know.

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 221,363 nationwide F-150 listings starting at $1,200.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,450
  • #2
    dandyoun
    Reputation
    4,650
  • #3
    tennisshoes
    Reputation
    3,270
View All

Related Models For Sale

Used GMC Sierra 1500
1,189 Great Deals out of 64,579 listings starting at $999
Used Dodge Ram 1500
427 Great Deals out of 11,124 listings starting at $1,495
Used Toyota Tacoma
706 Great Deals out of 45,624 listings starting at $1,000
Used Ford Mustang
591 Great Deals out of 39,474 listings starting at $1,895
Used Ford F-250
447 listings starting at $3,997
Used Chevrolet Tahoe
785 Great Deals out of 42,002 listings starting at $1,987
Used Ford Explorer
1,222 Great Deals out of 69,456 listings starting at $1,000

Used Cars For Sale

2018 Ford F-150 For Sale
4 Great Deals out of 118,661 listings starting at $20,645
2017 Ford F-150 For Sale
175 Great Deals out of 27,663 listings starting at $16,402
2016 Ford F-150 For Sale
204 Great Deals out of 7,868 listings starting at $16,991
2015 Ford F-150 For Sale
526 Great Deals out of 11,398 listings starting at $11,990
2014 Ford F-150 For Sale
759 Great Deals out of 15,326 listings starting at $8,075

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.