Question about 1986 Subaru Brat

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Have good fire on 1-3 cyl. very little fire on 2-4 cyl

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  • Subaru Master
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Sounds liuke the valves are burnt out ,1986 ?? probaly had its day and it would be cheaper to buy another car than repair this one

Posted on Oct 12, 2010

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6ya6ya
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Posted on Jan 02, 2017

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What is the firing order of my 2010jeep leberty 3.7 6cly


Firing order is 1-6-5-4-3-2

F CYL CYL CYL
R 2 4 6
O
N CYL CYL CYL
T 1 3 5

Jun 30, 2014 | 2004 Jeep Liberty

1 Answer

My crank shaft is rotating twise the crank shaft. HOW MY 1342 FIRING WILL OCCURE?, I can spare only 30 digree for charge and spark plug contact. THERE ARE ONLY 2+2 CYLINDER. 180 DIGREE APPART KINDLY REPLY...


Your crankshaft turns 2x times the camshaft. Put it this way as # 1 cylinder reaches TDC (top dead center) of the firing/compression stroke, and this will be after a (8 degs BTDC) spark to ignite the air/fuel mix, the # 3 cyl. will be at BDC of the intake stroke and as #1 begins its power down stroke, (during explosion of air/fuel mix), #3 begins its compression up stroke, the #4 cyl. will be coming down with #1 cyl. but #4 will be in the beginning of its intake down stroke, and #2 cyl. will be coming up with #3 but #2will be in its BDC of the exhaust stroke. Which has just fired previously to #1. 1342134213421342 etc. Now the cam turns to open / close the valves; In the outline above, #1 cyl. valves will both be closed. #3 cyl. will have the intake starting to close at this point. #4 cyl. will just be starting to open its intake valve, and #2 will be starting to open its exhaust valve. Is all this clear as mud? So as the crank makes one full rotation (in a 4cyl. engine) only the firing of one cylinder has happened.and at every rotation one cyl. will fire. So #1 at TDC then one full rotation, #1 back at TDC, but this TDC is half of its 4 cycles, (1)Intake, (2)compression, (3)power, (4)exhaust. this 1234 refers to the 4 cycles of the rotation not firing order.

Oct 31, 2010 | 2008 Volkswagen Jetta

1 Answer

Plug wire order on coil pack just put on a new one


My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.
I have only been a free contributor to this site for the past 4-months.

I do not know if you still need this information, but I am going ahead and answering it anyway.


I do not know if you have the 2.5L (4-Cyl), 2.8L (6-Cyl), or the 3.8L (6-Cyl); however I have included all three below.

For the 2.5L (4-Cyl)
Firing Order:
1-3-4-2
Cylinders:
(back of engine)
1-----2-----3-----4
(front of engine)
Ignition Connections:
(back)
o <-----1
o <-----4
___
o <----2
o <----3
(front)

For the 2.8L (6-Cyl):
Firing Order:
1-2-3-4-5-6
Cylinders:
(back of engine)
1--------3--------5
2--------4--------6
(front of engine)
Ignition Connections:
.........(back)
|.1..4.|.|.6..3.|.|.2..5.|
.........(front)

For the 3.8L (6-Cyl):
Firing Order:
1-6-5-4-3-2
Cylinders:
(back of engine)
2------4-------6
1------3-------5
(front of engine)
Ignition Connections:
Type I:
(back)
6..2..4
3..5..1
(front)
Type II:
(back)
|.3..6.|.|.2..5.|.|.4..1.|
(front)

Let me know if this helped, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!

Again my apologies...





Jan 07, 2010 | 1988 Oldsmobile Cutlass Ciera

2 Answers

Good day all i need the firing order for 94 sonoma


If you have the 4 cyl. it is 1-3-4-2. If you have the 4.3 V6 it is 1-6-5-4-3-2.

Dec 06, 2009 | 1994 GMC Sonoma

1 Answer

Spark plug diagram on a 1996 blazer?


V-8=pass side cyl.2-4-6-8....drivers side cyl. 1-3-5-7....firing order 1-8-4-3-6-5-7-2....v-6= pass side 2-4-6...drivers side...1--3-5 firing order listed on top if its a flat dist cap....if round cap order is 1-2-3-4-5-6-5...good luck..Lee.

Sep 14, 2009 | 1996 Chevrolet Blazer

3 Answers

I need firing order diagram on a 2000 S-Type Jaguar- V-8, 4 liter, 6 cylinder


2000 4.0 jaguar s type cylinder firing diagram:
FRONT OF CAR
5 1
6 2
7 3
8 4

Sep 09, 2009 | 2000 Jaguar S-Type

1 Answer

Dead cylinders 2003 sebring


it sounds like you may have the wires on the wrong coil. It should be #1 on the #4 coil, and the #3 wire on the #2 coil. you probably have them backwards so 1 and 3 are firing on the exhaust stroke.
the firing order is 1-3-4-2.
they should be hooked like this.
82c8490.jpg

3ddfc56.jpg

Jan 23, 2009 | 2003 Chrysler Sebring

1 Answer

What are the valve positions when cam gear is at tdc


hi from uk hope this will explain TDC valve positions ? when the crankshaft is at tdc this means that numbers 1 and 4 pistons are both at tdc but only one of the cylinders are on firing mode so if let us say in relation to 4cyl engine the fire order is 1 3 4 2 the c/shaft is at tdc ? but for which cyl ? 1 or 4 ? to check look if the camshaft mark is at its mark or check rotor arm ?if at 1 or 4 ? if it isat no1 cyl then both of the valves for that cyl are fully closed whilst no4 cyl valves are at the point of exhaust valve just closed and inlet just about to open this is correct for tdc number 1 cyl firing stroke ?ok so far ? now then if c/shaftmark is atTDC it may be number 4 cyl ready to fire? that is because the camshaft rotates at half speed to the crankshaft soyou need to rotate crank 360 deg to bring cyls 1 + 4 to tdc again then it will be cyl 1 at tdc on firing stroke along with rotor arm at No 1 plug lead and both valves for No 1 cyl will be closed (the cam lobes will be facing up whereas No 4 cyl valves will be pointing down ) hope this is clear for you to understand? if you look at any 4 cyl engine the sequense is the same for No 1 TDC but firing orders may change ie fords 1 2 4 3 is fire order they use as apposed to 1 3 4 2 ? OK? CURIOUSE why you asked? but best wishes and merry xmas from uk

Dec 07, 2008 | Honda Civic Cars & Trucks

2 Answers

Need to know firing order


6 cly firing order is 1-5-3-6-2-4
8 Cyl firing order is 1-8-4-3-6-5-7-2
4 cly firing order is 1-3-2-4

Oct 30, 2008 | 1986 Jeep Comanche

1 Answer

No Start. OBDii Code P2305.


i have the same problem could someone please help ? its getting cold outside and i live 30 miles from my job.

Aug 09, 2008 | 2004 Chrysler PT Cruiser

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