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Spark plug gap setting for a 1986 Jeep 258 ci straight 6 engine.

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  • Jeep Master
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A blast from the past... 1986 jeep , with no name, 1 of 7models....
ill roll the dice for yah. J10 jeep, 4.2L
i think NGK covers that, did you look i there free on line eCAtalog.
0.035"

as seen here.
http://www.partcat.com/ngk

id look it up in mitchells but no car stated,
CJ7 and Grandwagoneer show same,
35 THOU

Posted on Dec 05, 2016

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1 Answer

I changed spark plugs on my 01 jeep grand cherokee it was running but turned off on me now it wont start anymore.


which engine?
2001 WJ , jeep.
wrong spark plugs!
gapped wrong!
wrong wire order?
do tell engine you have there.
do tell park plug brand and numbers.
do tell if engine has coil packs, how many, and how you wired them back..
now answering for USA cars, (not exports. or those jeeps made in Europe. )

the 4.0L engine with the 3 coil rack pack? with 6 spark wire sets?
the 4.7liter has 6 coil packs coil over plug COPS.
that can not be wired wrong but could be unplugged in primary side.

my guess, wrong parts, wrong gap
or not reconnected right.
if spark is lost, scan the PCM cranking, look for DTCs/

Dec 24, 2015 | Jeep Cars & Trucks

1 Answer

Spark plugs


double posted
answer 35 thou..... 4l or the other bigger.

Feb 19, 2014 | Jeep Scout Cars & Trucks

1 Answer

Firing order


usa.
open hood,

look up , see USA EPA, spec, right there.
or RTM.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

posted 102 times at least

Feb 19, 2014 | Jeep Scout Cars & Trucks

2 Answers

What motor is in a 86 cutlass supreme 4dr sedan


They had several available for that year it looks like a V-6 model and several V-8 models. I have attached the link for your review. Either copy the link or paste it into your web browser. Here is the link:

http://en.wikipedia.org/wiki/Oldsmobile_Cutlass_Supreme#Fourth_generation:_1978.E2.80.931987

I hope this helps you out and if it does please give me a YES on the web page you just received my response on. Thank you

Apr 12, 2011 | 1986 Oldsmobile Cutlass Supreme

1 Answer

Spark plug gap for 1986 izusu pup with 1.9 engine


Make: ISUZU
Model: PICKUP
Year: 1986
Engine: L4 - 1.9L - CARB - - GAS

Traditional spark plug (Original Equipment Manufacturer and/or Original Equipment Equivalent)
Part Number: RN12YC
GAP: .044"

Hope helps (remember to rate this answer).

Feb 06, 2011 | 1986 Isuzu Pickup

1 Answer

Whats the spark plug gap for a 1986 fiero 6???/ i reallt need to know i had spart plus put in but my car just got wrose so they really werent the right one i thin or the last 2 i put mayb the ones that...


.045 should be about right.

when you buy spark plugs for your specific vehicle, look on the box or ask the auto parts salesperson, they should have that info

May 19, 2010 | 1986 Pontiac Fiero

1 Answer

Engine will not start. Coil is firing when


If coil is good and plugs are not - there's your problem. You can't have output of coil be good and plugs not work right. Something inbetween is wrong.

Dec 17, 2009 | 1986 Jeep CJ7

2 Answers

Looking for the spark plug gap specs for a 1979 Ford van


MOTORCRAFT Part # SP420 {#BSF42C, BSF42CF4}
.044" Gap
this gap has been he same for years, who told u 0.26"?

Sep 18, 2009 | Ford Econoline Cars & Trucks

2 Answers

Location of sparks plugs


For Jeep Cherokees with a 4.0 engine; (if you are standing in front of the vehicle looking back at the engine compartment) the spark plugs are on the left side / the same side as your battery. What look like spark plugs on the right side of the engine are actually your fuel injectors. On the exact opposite side of the engine block, all 6 spark plugs are held in place with a long rectangular box (called a coil pack) that has 3 small raised boxes on it. The coil pack is the length of the engine block and about 1 1/2 wide. There are 4 large approx 1/2 bolts that hold this coil pack in place. There is a plug on the back end / closest to the fire wall where you can upplug this coil pack but I couldn't unplug it.
Simply, remove the 4 bolts holding the coil pack in place, lift the coil pack away from the engine block and the spark plugs are exposed. The boots that attach to the spark plugs are "fixed" in to the coil pack. Replace your spark plugs some type of using anti-sieze compound, adjust your gap, and torque to 19 lbs. NOTE: use dielectric grease on plug boots and coil pack ends of wires. can also be used on plug in bulbs.
The above answer is great but if they are platnum plugs dont bother setting gap because you usually don't get a spec anyways and you do more harm than good. The gap is preset.

Aug 19, 2008 | 2002 Jeep Grand Cherokee

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