Question about 1996 Buick Riviera

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Spark plug replacement

What is the best way to approach replacing the spark plugs next to the fire wall? It seems to me coming up from underneath would be the best method, but I am not sure. My Buick has 110,300 miles in it and the pc shows a missfire on #2 cylinder.

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You can reach from the top of the engine.It just takes some adjusting your hand and feeling around when you finally get you hand on the wires and plugs since visibility is not great.I just didi mine yesterday.

Posted on Jan 04, 2009

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How do I access the spark plugs on a 2000 Plymouth Voyager 2.4L? Seems to be hard to get to the 2 closest to the drivers side.


all the inner plugs i had to get from underneath the van and reach on top just in front of the fire wall. there is room. but not much.

Feb 26, 2015 | 2000 Plymouth Voyager

1 Answer

Blinking Check Engine Light / Rough Idle


Double check the spark plug wire firing order. The cylinder have to have voltage in a certain order. If you do not have a motor manual you can google for this information. just write for example: 2002 ford taurus 6 cylinder spark plug firing order. The firing order goes in sequence usually in a clockwise direction. For example: 1, 5, 3 ,6 2, 4 in a clockwise order. spark plug #1 wire goes to the coil then spark plug #5 wire goes on the coil in a clockwise rotation, next to where spark plug # 1 was connected. This would mean that spark plug number 1 will fire (or get voltage), then spark plug nuimber 5 will fire (get voltage), then spark plug number 3 and so on. The sequence will continue to happen over and over again as long as the car is on. Here's another tip! When it nice and dark outside, turn your car on with the hood open and look at your spark plug wires for any voltage jumping from the wires to the motor metal. Keep in mind you may have to tent yourself with a cardboard to see the voltage arcing to metal. It has too be super dark for you too see this fault. Any arcing will cause your engine to misfire and your engine light to come on. Hope this gives you a starting point to finding the problem. Good Luck.

Mar 07, 2014 | 1996 Pontiac Sunfire

1 Answer

Shaking engine ,engine light blinking,even when you accelerate in neutral


It sounds like you are not firing on all cylinders. there could be several possibilities. Starting with the cheapest fix, replace the spark plugs. if the problem continues, you have a bad or plugged fuel injector or possible other things. The best approach after changing the plugs is to take you car to a dealer or simply have your mechanic or a friendly neighborhood motor head pull the codes. This is the best avenue to start with. .

Nov 26, 2013 | 2004 Saab 9-3

1 Answer

The Chevrolet Dealer Mechanic replaced the spark plug wires on my 1994 Impala SS. Three weeks later the engine started to misfire. I took the car back to the dealership and asked them to replace the spark...


What kind help you need?
You already know the problem is. So just replace the burn one.
and make sure secure it. Do not let it loop to touch the exahust
you should be good to go.

(Dealer machanic is same as the other one. They only have better equipment and new information available)

Mai Lor

Feb 27, 2013 | 1994 Chevrolet Impala

2 Answers

Bought it a couple months ago with 44k mi. now has 77k mi. started missing, running rough, severity is worse about 40mph. tried putting in a set of plugs, didn't help. noticed #5 plug soaked with fuel,...


First you say #5 doesn't appear to be firing

Then you say the coil pack is okey and you have spark

Also worse about 40 mph but plenty of power
You can't have it both ways

You have an issue with cylinder #5 causing a
drivability problem

I would have thought that you would have checked
for a leaking injector on #5 and a misfire also.

You will have to pick the way you approach this

You really need to current ramp the injector voltage
compared to the others
Switching the injector to another location will be
time consumming and a new one expensive.

Jan 28, 2011 | 1993 Mercury Grand Marquis

2 Answers

2000 cadillac sls v8 northstar cylinder 7 isnt firing and already put new sparkplugs in and still isnt firing.whats next


iginition coil needs to be replaced. By for about 150 to 200, and take the Northstar cover off and replace. Very easy fix. Car will then run like a jet engine.

Sep 07, 2010 | Cadillac Seville Cars & Trucks

1 Answer

Spark plugs


On the 3.5L the Electronic Coil Packs are located over the Cylinders/Spark Plugs.
These Coil Packs have seven (7) bolts on a Black Cover. Remove these seven (7) bolts, removing the Cover.
Access to the three (3) Front Spark Plugs is now gained.
The Rear three (3) Spark Plugs is the same, however it is in a tight spot near the Fire Wall.

Standard Rules: Some things are not Applicable for your specific engine.
Use a Spark Plug Socket to remove and install Spark Plugs.

Replace (remove) one Wire Connections at a time from one Spark Plug.
Replace One Spark Plug at a time. Use Anti-Seize Grease applied moderately to the threads on the new Spark Plug.
Using a Socket (with a extension) START all installations of all Sprak Plugs using your hands. This prevents cross-threading and stripping of the threads inside the Heads.
Standard Torque 15-20 ft-lbs.
Replace the One Wire Connection to that One Spark Plug.
Replace that One Wire Connection to the Ignition Coil Connection.
Go onto the next Spark Plug using the above Rules.
Repeat.

For the 3.5L
Firing Order:
1-2-3-4-5-6
Cylinders:
.....(back)
1......3.......5
2......4.......6
....(front)

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

Mar 01, 2010 | 2000 Oldsmobile Intrigue

3 Answers

How do i change the spark plugs on my 2002 dodge grand caravan


ok that is not the easy the ones in the front those are the easy ones but the ones in the back thse are dificul ones so in order to change those spark plug you need to race the car and try to change them from underneath this is one way the other way is to remove the intake sistem and change them from the top

Jun 07, 2009 | 2002 Dodge Grand Caravan

1 Answer

1999 Jeep Grand Cherokee 4.0L mis-firing


Put new distributor cap and rotor at least

May 07, 2009 | 1999 Jeep Grand Cherokee

3 Answers

Spark plugs


The best way is from under the vehicle on a lift, or you can jack up the vehicle and support it with jack stands. You can access the spark plugs between the fire wall and motor from under the vehicle..

Nov 25, 2008 | 2000 Dodge Caravan

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