Question about 1991 Isuzu Trooper

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Spark plug leads order of firing - 1991 Isuzu Trooper

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Firing order 4 cylinder engine 1-3-4-2 --------- front | | of | 1 2 3 4 | distributor rotates counter vehicle | | clockwise ---------

Firing order 6 cylinder engine 1-2-3-4-5-6 ------- front | 1 3 5 | of | | Distributor rotates clockwise vehicle | 2 4 6

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Posted on Apr 26, 2010

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Spark Plugs applications and the correct use of specs is very important. Higher or lower in grades might be the caused.
Thank you

Posted on Apr 26, 2010


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1 Answer

What order do the spark plugs go in?

there is no set order in replacing spark plugs
however if you are asking the firing order for the plugs leads to fit to the spark plugs, simply remove one lead at a time , one plug at a time and replace that lead then move onto the next plug

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Jan 16, 2014 | 1990 Daihatsu Charade

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I'll start from the beginning... 91 cbr250rr sat for over 6months then wouldn't start. Didn't have a choke so decided to put in new one while doing that decided to replace spark plugs and new leads, (had...

Is your choke working OK? there a spark at plugs take a lead of and put a good plug in the cap hold the plug against metal block to see if a spark is present use gloves or a pair of pliers to hold plug or u will get a big shock,this will olso check ur leads check each one in turn ,the firing order chud be in hand book

Oct 29, 2013 | Cars & Trucks

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I replace my spark plug yesterday but today my car won't start what can i do

if your car was starting up before you replaced the spark plug leads, my suggestion (as long as you put simlar plugs back in) is that the leads are around the wrong way........with the engine, if you have a 4 cyl, it does not fire 1-2-3-4, there is a particular firing order, eg 1-3-4-2, for a 4 cyl.

you did not state what vehicle you had, so i cannot tell you what the firing order is, and hence the correct position for the leads

this would be my first guess

Jun 11, 2010 | 2000 Nissan Xterra

1 Answer

Need firing order diagram.. wont start

remove the dizzy cap, crank motor over to find out the rotation of the rotor. Remove the no.1 spark plug and bring no.1 piston up to top dead centre on compression stroke, mark side of dizzy body where the end of the rotor points to, replace dizzy cap and see which lead it lines up with.
that will be your no.1 lead, find the firing order and put the leads back on the dizzy cap in the direction of the rotors rotation, run those leads to the corresponding plugs and it should start.

May 19, 2009 | 1979 Lincoln Mark V

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