Question about 1993 GMC Sierra K1500

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No compression on 2 cylinders

Have no compression on 2 cylinders side by side on right bank

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You have a blowen head gasket

Posted on Feb 23, 2009

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Have changed all plugs and coil packs but still giting miss in 1 3 5 cil think its a short in wire hornins but cant find a diagram


If you are getting a misfire code on those three cylinders (all on just that one bank of engine!), it's probably not an electrical short, but something else causing misfire. Misfire codes are set when the power output from that cylinder is less than expected: the pcm senses a crankshaft lag in power output and sets the code.

Typically, misfires are caused by weak or missing spark, or by fuel/air mixture problems, or by low cylinder compression. The fact that your misfires are all on one bank (side) of the engine sounds suspiciously like the fuel/air mixture might be wrong for that bank, or the cylinder compression is low on that bank.

You could use a spark tester just to check spark on 1, 3, & 5. Use a calibrated spark tester to compare both banks-all 6 cylinders. I think you will see equal spark at all cylinders. The only shorts would be in the spark plug wires. And not likely all 3 went bad at once, although you could check them, maybe swap a few around and see if the misfire follows the wire.

Start looking for air or vacuum leaks that only affect bank 1. Possibly an intake manifold leak, could also be an exhaust leak, something that affects the air/fuel mixture in the bank 1 cylinders. Also you could do a compression test of the cylinders to make sure bank 1 is good, same compression as in bank 2 (the other side of engine). Just some tips to help you out, good luck.

Feb 20, 2016 | Cars & Trucks

1 Answer

2.8l v-6 which bank contains #1 cylinder left or right? Right bank is farthest forward viewed from front of engine.


bank #1 is the driver side or left side which include cyl 1,3,5,7 and bank #2 is right hand side and cyl 2,4,6,8 are in bank #2. ciylinder #1 is left hand side of engine and is the first cylinder from the front of engine.

Mar 16, 2015 | 1989 Oldsmobile Cutlass Ciera

1 Answer

Need a wiring diagram for spark plugs for a 1995 jeep Cherokee sport


V6 engine: firing order: 1 2 3 4 5 6, distributor rotates clockwise. Left bank of engine (driver's side), cylinders 2, 4, 6 (#2 at front of engine). Right bank: 1, 3, 5 (#1 at front of engine).
Inline 6 engine: firing order is 1-5-3-6-2-4. Distributor rotates clockwise.
The number one tower on the dist. cap should have a mark or numeral 1 on it. If not, turn crankshaft to top dead center of compression stroke on number one cylinder, the 0 degrees or "T" mark on the crank pulley pointer. If you are on the compression stroke (not the exhaust stroke), the rotor under the dist. cap will be pointing to the number one cylinder spark plug wire tower.

Mar 30, 2012 | 1995 Jeep Cherokee

1 Answer

Location of Bank 2 on Audi a6 to replace o2 sensor


Bank 2 on Audi A6 is the left side bank of cylinder block. In other words driver's side cylinder bank for Left Hand Drive (LHD) vehicles. For Right Hand Drive (RHD) vehicles bank 2 is the passenger's side cylinder bank.

Aug 09, 2011 | Audi A6 Cars & Trucks

2 Answers

Were is bank 2 located on a Chev Tahoe 1996


  • Bank 1 is the side of the engine with cylinder 1 on it.
  • Bank 2 is the side of the engine with cylinder 2 on it.
  • So as you are looking strait ahead at your engine the right side is Bank 1 and the left side is bank 2.

  • Hope this helps and thank you for using FixYa.

Regards, Tony

Jul 29, 2011 | 1996 Chevrolet Tahoe

2 Answers

I have a 1999 xk8 and need to know exactly which side Bank one is while sitting in the drivers seat.


Bank one will be on the right side of the engine/vehicle if viewed from the driver seat. Bank one will always be the cylinder bank that has the # 1 cylinder in it. Here is a firing order diagram to help assist you and let me know if you require any further assistance.



Bank one is comprised of cylinders # 1, # 2, # 3, and # 4.
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Nov 19, 2010 | 2000 Jaguar S-Type

1 Answer

Where is the bank 1 sensor 2 o2 sensor for a 96 chevy s10 v-6?


Oxygen sensors are numbered by which bank of cylinders they serve. Bank 1 is the left or drivers side bank of cylinders on the 4.3L which has the odd numbered cylinders 1,3, and 5. Bank 2 is the right or passenger side bank of cylinders numbered 2, 4, and 6. The Bank 1 Sensor 1 would be the sensor for the left hand side of the engine AHEAD of the converter. Bank 1 Sensor 2 is the sensor for the left hand side bank of cylinders BEHIND the converter.

Jun 02, 2010 | 2002 Chevrolet S-10

3 Answers

Where is the bank 2 sensor 1 located.


Oxygen sensors are always numbered like this:

Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2

some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2

Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.

Sensor 1 is always the upstream sensor (The one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.

Most GM engines have #1 cylinder located on the left bank, (or Driver's Side) of the engine,

So, the answer to your question would be that you are looking for the sensor located before the catalytic converter on the right (or Passenger Side) of the truck.

Oct 17, 2009 | 1996 Chevrolet K1500

1 Answer

Toyota mr2 roadster 2001 engine light on code po141 oxygen sens


bank 1 will be whichever side cylinder 1 of your engine is and bank 2 will be the opposite side. It's named bank 1 and bank 2 so that no matter how the engine is laid out, bank 1 is always on the same side as cylinder 1. I cannot say whether the right hand or the left hand one will be bank 1 as I do not know where your cylinder 1 is. The garage should know

Sep 08, 2009 | 2005 Toyota MR2 Spyder

1 Answer

Engine light on code po141 oxygen sens bank 1 sens 2


bank 1 will be whichever side cylinder 1 of your engine is and bank 2 will be the opposite side. It's named bank 1 and bank 2 so that no matter how the engine is laid out, bank 1 is always on the same side as cylinder 1. I cannot say whether the right hand or the left hand one will be bank 1 as I do not know where your cylinder 1 is. The garage should know


Sep 08, 2009 | 2002 Kia Sedona

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