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01-06-2018, 10:04 AM
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Learning to use the forums
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Join Date: Sep 2014
Posts: 4
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Replaced plugs and wires and now it cranks but won't start
I just replaced my plugs and wires yesterday. Autolite Iridium XP103 plugs and Motorcraft OEM wires (both from Rockauto).
Plugs gapped to .045 from the box, and I checked each one.
Yes, I did one plug and one wire at a time. There is no way I screwed that up.
Old plugs looked like crap. But only 1, cyl 6, caused check engine light and misfire.
150,000 approx miles on the truck.
Yes I disconnected the battery during the install.
Yes I hear the fuel pump on turning the key to start.
The truck cranks fine but won't start. Any ideas on what to check?
Thanks in advance!
Steve
1999 Ford Ranger 3.0 Flex Fuel, XLT 2wd auto
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Steve
1999 Ford Ranger XLT Supercab 2wd 3.0 FFV Auto
31" BFG AT T/A KO2 on Centerline rims sitting on stock suspension
Pioneer DVD touch screen with apps and bluetooth
Limo tint
Last edited by PhoenixSteve; 01-06-2018 at 10:32 AM.
Reason: added line of text
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01-06-2018, 01:10 PM
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Busted Knuckles
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Join Date: Mar 2016
Posts: 230
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Re: Replaced plugs and wires and now it cranks but won't start
Recheck your work. You may have just bumped a wire loose or didn't connect something. Check coil pack plug. Disconnected battery, which post? Ground, positive or both? I never found it necessary to do that but ok. Were there any other wires connected to the battery other than the cables? There is also the chance this has nothing to do with your repairs and is completely new and coincidental. So you will need to determine what it is lacking, spark or fuel.
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1995 Ranger XLT 3.0L OBDII
Trans: A4LD (E) 2WD
Rear: 7.5 / 3.45 NL LHD
Tires:GY P235 75/R15 (orig 225 70/R14)
Long Bed, 20 Gal Tank
Up to 229,900 miles
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01-06-2018, 05:21 PM
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Learning to use the forums
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Join Date: Sep 2014
Posts: 4
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Re: Replaced plugs and wires and now it cranks but won't start
Thanks Grumpa. I appreciate the reply.
Unplugged the negative side for the install. Only did that to clear the code while working on the plug and wire install.
I checked all the work, and unplugged all the plugs, one by one, backed them off and tightened each a little less than original (didn't crank it down but suspected maybe a bit too tight), checked for loose wires, etc.
It finally started.
In fact it idled so well that for the first 5 mile test ride I couldn't tell it was running at stop lights. Then it threw a blinking check engine light and started running not so smooth.
I had the kid at Autozone check and clear the check engine light and the code is now saying bad coil. Yes, perhaps coincidental. The check engine light is now intermittent and blinking when it does come on. Running, and a lot better than before, but still intermittent check engine blinking. Oh...and it smells like something is burning...ugh...
Checking Rockauto for coil packs as a next step but at least it is running again. Looks like MOTORCRAFT DG535 - is this right for a 1999 V6 3.0 FFV?
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Steve
1999 Ford Ranger XLT Supercab 2wd 3.0 FFV Auto
31" BFG AT T/A KO2 on Centerline rims sitting on stock suspension
Pioneer DVD touch screen with apps and bluetooth
Limo tint
Last edited by PhoenixSteve; 01-06-2018 at 05:26 PM.
Reason: added text
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01-06-2018, 05:31 PM
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Still around
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Join Date: Jun 2012
Posts: 2,298
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Re: Replaced plugs and wires and now it cranks but won't start
The flashing engine light means a cylinder is missing, check your wire routing for a wire touching the exhaust. Also check EBay for a coil. I’ve yet to buy from Rock Auto, I always find better deals elsewhere.
Sent from my iPhone using Tapatalk
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2011 Ranger XLT 4x4 3.73 8.8" Trac-lok #1 T-bars, K -springs, LineX bedliner, General Grabber AT2's, Tonnopro tri-fold, CoverKing Realtree AP seat covers, OEM pre-keys, axle spacers, Bilstein 4600's, Hellwig AAL. Ziebart Undercoat
'98 Ranger XLT 2WD (sold)
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01-06-2018, 07:52 PM
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Learning to use the forums
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Join Date: Sep 2014
Posts: 4
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Re: Replaced plugs and wires and now it cranks but won't start
99Ranger376, thank you for the reply.
I used most of the old wire management but there could be one of the new wires touching since I broke a few trying to separate them. Didn't think, since they're insulated, it would cause a problem but worth a check anyhow. Maybe I'll run everything up to the coil from the sides instead of around the backside since the coil is right on top.
I just checked eBay and Rockauto still looks like the best deal on that coil pack.
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Steve
1999 Ford Ranger XLT Supercab 2wd 3.0 FFV Auto
31" BFG AT T/A KO2 on Centerline rims sitting on stock suspension
Pioneer DVD touch screen with apps and bluetooth
Limo tint
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01-07-2018, 09:19 PM
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Still around
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Join Date: Jun 2012
Posts: 2,298
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Re: Replaced plugs and wires and now it cranks but won't start
Quote:
Originally Posted by PhoenixSteve
99Ranger376, thank you for the reply.
I used most of the old wire management but there could be one of the new wires touching since I broke a few trying to separate them. Didn't think, since they're insulated, it would cause a problem but worth a check anyhow. Maybe I'll run everything up to the coil from the sides instead of around the backside since the coil is right on top.
I just checked eBay and Rockauto still looks like the best deal on that coil pack.
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Cool, good luck with it
Sent from my iPhone using Tapatalk
__________________
2011 Ranger XLT 4x4 3.73 8.8" Trac-lok #1 T-bars, K -springs, LineX bedliner, General Grabber AT2's, Tonnopro tri-fold, CoverKing Realtree AP seat covers, OEM pre-keys, axle spacers, Bilstein 4600's, Hellwig AAL. Ziebart Undercoat
'98 Ranger XLT 2WD (sold)
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01-12-2018, 07:30 PM
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9906fordguy
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Join Date: Sep 2017
Posts: 6
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Re: Replaced plugs and wires and now it cranks but won't start
If it starts running rough again, wiggle test, sometimes that can help pin point the issue.
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1999 ranger 3.0 4x4
1996 ranger 3.0 4x4
1996 ranger 4.0 4x4
2006 f250 6.0
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01-13-2018, 10:05 AM
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Learning to use the forums
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Join Date: Sep 2014
Posts: 4
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Re: Replaced plugs and wires and now it cranks but won't start
Problem solved! Yea!
Ordered new coil pack from Rockauto. $42. Got it in 2 days.
10 min install.
Purrrrrrs like a kitten now and feels like a new truck. So quiet that at traffic lights I can't feel it running.
So all in all it needed plugs (got Autolite Iridium), wires (Motorcraft) and a new coil (Motorcraft) and for under $100 it runs like new.
Thanks for all the replies.
__________________
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Steve
1999 Ford Ranger XLT Supercab 2wd 3.0 FFV Auto
31" BFG AT T/A KO2 on Centerline rims sitting on stock suspension
Pioneer DVD touch screen with apps and bluetooth
Limo tint
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01-13-2018, 12:27 PM
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Busted Knuckles
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Join Date: Mar 2016
Posts: 230
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Re: Replaced plugs and wires and now it cranks but won't start
Glad to hear it worked out!
__________________
1995 Ranger XLT 3.0L OBDII
Trans: A4LD (E) 2WD
Rear: 7.5 / 3.45 NL LHD
Tires:GY P235 75/R15 (orig 225 70/R14)
Long Bed, 20 Gal Tank
Up to 229,900 miles
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