Question about 1994 Chevrolet Cavalier

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When the car is stop only 3 cylinders works, when is running the 4 cylinders works, I changed sparks plugs and cables but the problem remains

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You may have a problem with a valve (check compression) or intake manifold gasket may be blown on the cylinder that isn't working properly....hope this helps....cheers

Posted on Jul 07, 2010

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1 Answer

Running on two cylinders


The removal of # 3 & # 4 tells you those cylinders are
contributing the most ,as removing the wire causes the motor
to stop
My guess is that the other cyl #1 & #2 are not firing at all, if there
is no change

If you had a V6 or V8 it would continue to run,not so with only
4 cylinder

Learn or study the ignition system & replace any ignition control
module that fires the first two cylinders

Get an HEI Test Spark Plug & put the plug wire to that & ground it
& see if you get spark,check all the plug wires one at a time.

Don't forget timing belts that are worn & slip,battery voltage,alternator output & A/C Ripple coming out of it

I would check compression or better yet, do a cylinder leak down test.
Could be you have worn valves in #1 & #2 thus little spark
Check fuel pressure at motor with a gauge

Mar 08, 2014 | Daewoo Lanos Cars & Trucks

1 Answer

The engine on my sons 91 Mazda Miata is running ruff. Like on 3 cylinders. If I pull the spark plug wire on the #1 cylinder the engine runs the same. If I pull the spark plug wires on the #2,3, or 4...


You have done a great test but If I assk you to do a swap of the Ist cylinder plug and injector with one from the 3rd , we can come to a conclusion before we can change the full set of plugs and injectors for a good performance.( only if the mileage is time enough to do the change)
If you have confirmed with the spark and the fuel ( hope the fuel pressure is good and the pump calibrated , even though this is not relevant) please also check the wires to the first plug and the fuel line to the first injector.
I hope there is no issues in the pump finally for not releasing enough fuel to the first.( Check for presence of fuel pressure in this line)
I am sure you are confident enough to get to the fault .
Hope you credit me if this helps a bit. Good day

Aug 18, 2010 | 1991 Mazda MX-5

1 Answer

Recently had all plugs and EGR Valve changed.


firewall

4 - 8

3 - 7

2 - 6

1 - 5

front

The spark plug firing order is 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 Make sure the coil is good.

Jul 21, 2010 | 2000 Ford Expedition

1 Answer

Change sparks plugs on 06 hyundai sonata v6


You didn't specify whether you have the (4) cylinder or the (6) cylinder engine..... I have a 2004 Hyundai Sonata 2.4L 4 cylinder and I just changed the spark plugs in it. I believe that the 2005 2.4L engine is the same. To locate and change the (4) spark plugs on a 2004 Hyundai 2.4L 4 cylinder engine: Remove the (4) 12mm bolts from the decorative plastic engine cover. Remove plastic cover from engine and place it off to the side out of your way. Standing in front of the car, the (4) spark plugs are located laterally (left to right) in the recessed area underneath where the plastic engine cover was removed. Note: This engine has (2) coils....They are located above spark plugs number (2) and (3) from left to right. Starting with the fist spark plug on the left: Remove the spark plug cable by pulling straight up on the insulated connector. Using a spark plug socket, remove the old spark plug and install a new one in it's place. To access the second spark plug from the left, remove the electrical connector and the spark plug cable wire from coil number (1) and then remove the (2) 12mm bolts that secure the coil to the engine. Spark plug number (2) is located directly under the coil. Lift the coil straight up removing the insulated connector from spark plug number (2). Using a spark plug socket, remove old spark and install a new one in it's place. Repeat same procedures for spark plugs number (3) and (4). Note: If you have the (6) cylinder engine, the front (3) sparks pluge are readilly accessible but in order to access the (3) rear spark plugs, you will have to remove the intake manifold

Jul 08, 2009 | 2006 Hyundai Sonata

1 Answer

How to change spark plugs on 2002 mk4 automatic golf


1 - High Tension cable
  • 4 to 8 Kohms
  • With suppression connector and spark plug connector
  • Only remove and install spark plug connector using tool T10029
2 - Ignition coil with output stage (-N70-, -N127-, -N291-, -N292-)
Connection, ignition wires:
  • HV1 = Cylinder 1
  • HV2 = Cylinder 2
  • HV3 = Cylinder 3
  • HV4 = Cylinder 4
3 - 10 Nm 4 - Connector
  • 6 pin
5 - Knock sensor 1 -G61-*
  • Contacts gold plated
  • Fitting location: Cylinder block intake side
6 - 2-pin connector
  • For knock sensor 1 -G61-
  • Contacts gold plated
  • Do not interchange
7 - Knock sensor 2 -G66-*
  • Contacts gold plated
  • Fitting location: Cylinder block intake side
8 - 2-pin connector
  • For knock sensor 2 -G66-
  • Contacts gold plated
  • Do not interchange
9 - 20 Nm
  • Tightening torque influences the function of the knock sensor
10 - Spark plug, 30 Nm
  • Type and electrode gap See test data, spark plugs.
  • Remove and install with 3122B
11 - Connector
  • Contacts gold plated
  • 3 pin
12 - 10 Nm 13 - 100 Nm
  • Use counter- hold tool 3415 to loosen and tighten
14 - Camshaft sprocket
  • With rotor for Camshaft Position (CMP) sensor
15 - Camshaft Position (CMP) sensor -G40-* 16 - Bracket
  • For Camshaft Position (CMP) sensor

Jun 04, 2009 | 2002 Volkswagen Golf

1 Answer

Change spark plug wires on 04 kia sedona


REMOVAL OF THE PLUGS:

Do not attempt any maintenance on spark plug if engine is hot. 
1. Disconnect negative battery terminal. 
2. Carefully remove high-tension leads. 
3. Use compressed air to blow any dirt or debris from around spark plug hole. 
4. Check that spark plug fits squarely in spark plug socket and remove spark plug.

Raise a vehicle and install SST(OK552 131 001) in order to replace cylinder 2, 4, 6 spark plug. 

INSTALLATION:

1. Install spark plug into cylinder head.

Tightening torque : 18~22lb-ft (25~30N·m, 2.5~3.0kg-m)

2. Reconnect high-tension leads. 
3. Reconnect negative battery cable. 

Hope this helps and simple to understand. Good luck

Apr 20, 2009 | 2004 Kia Sedona

1 Answer

1998 Cavalier No Spark in cylinders 1 & 4


ignition mod. grounds,pcm or timing belt could all be it but, I would have to look at timing first.

Jan 13, 2009 | 1998 Chevrolet Cavalier

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