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Egr grand prix

I have a 08 grand prix 3.8 one of the coilpack is not fireing i canged it still no power out of that coil please help!

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Mustgo
  • 2359 Answers

SOURCE: 1997 pontiac grand prix se has code po401. I

Check for

vacuum leaks on intake manifold,

the air tube between the air filter.

intake manifold vacuum hose.

===
clean throttle plate with Berryman carburator cleaner

SEE sample picture HERE
===

Also remove carbon built up behind the EGR valve and the EGR passage tube.

===

Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.

More un-metered air (leaks) will lean out the fuel mixture.

Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.

At idle,just spray and listen for the RPM surge.

The in-rush of carb clearer will increase the RPM on the motor.

Record the problem spot(s) and address it later.

===

EGR carbon built up require 2+ hours to clean from start to finish.

You will need a new EGR base gasket before your start.

Locate and remove the EGR valve after the vehicle is cool down.

Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.

Remove the EGR valve.

Inspect the location of the carbon built-up inside the valve and the EGR passage tube.

SOAK these areas with WD-40 spary.

You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.

RE-SOAK the carbon and let it sit for over-night will also help.

One the last round,pass a shop vacuum of the EGR valve and the passage pipe.

Install the new EGR gasket and connectors.

Allow the vehicle to warm up outdoor to burn up any remaining WD-40.


Take it for a test drive.


Please rate my answer if it's useful to you.


Cheers,

Mustgo

Posted on Dec 19, 2009

ZJLimited
  • 17970 Answers

SOURCE: coil firing oreder for a 2004 pontiac grand prix

Several VIN engine there, check this diagrams...


999690f.jpg

Fig. 3.1L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system


f194981.jpg

Fig. 3.4L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system


25ab276.jpg

Fig. 3.8L (VIN 1) Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system


26e2984.jpg

Fig. 3.8L (VIN K) Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system


7a2168c.jpg

Fig. 3.4L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system

Hope helps (remember rated this).

Posted on Jul 07, 2010

emissionwiz
  • 75822 Answers

SOURCE: I have a 2001 pontiac grand prix 3.8 QUESTION,

only if it is leaking, u can check this by touching the valve with wet fingers when the engine is idling, if u hear a sizzle the valve is leaking

Posted on Jul 29, 2010

  • 834 Answers

SOURCE: 1988 grand prix coil pack firing order diagram

Here is a firing order diagram to help assist you, and let me know if you need any help to understand this diagram, or if you require any further assistnace.


970c484.jpg

Posted on Oct 02, 2010

dttech
  • 4803 Answers

SOURCE: 99 pontiac grand prix that is still mis firing

Misfires can be caused by several things including all the parts you have already replaced as well as faulty ignition coils, faulty injectors, vacuum leaks and engine mechanical problems such as low compression.
With the proper equipment, injector operation can be verified by performing injector balance tests, where the operation of the injectors in the misfiring cylinders is compared to the other cylinders that are not misfiring.
Also, engine mechanical failures such as bad piston rings or leaking/burnt valves can be diagnosed with a simple compression test.
An easy (and very inexpensive ) way to verify ignition coil operation is to swap the coil from the misfiring cylinder(s) with the coil(s) from the cylinder(s) that is(are) not misfiring. Then clear the fault codes and drive the vehicle. If the same cylinders are still misfiring, the coil is not the problem. If the misfire moves to the cylinder that you swapped with - replace the coil.
Sometimes, injectors can also be tested this way, but on most GM V-6 or V-8 engines, this is not practical due to the labor involved in "swapping" injectors.

Posted on May 10, 2011

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. You're not going to believe this but the firing order is actually 1-2-3-4-5-6. Your particular vehicle uses coilpacks. Cylinders 1 & 4 share the same coil, 2 & 5 also share the same coil. And lastly, 3 & 6 share the third coil. Hope this helps.

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1993 poniac grand prix 3.1L firing order with pics of coil pack....


1993 Pontiac Grand Prix 3.1 liter DOHC V-6 VIN "T"

zjlimited_441.gif


Hope this helps (remember to rate this answer).

Jun 15, 2011 | Pontiac Grand Prix Cars & Trucks

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GM 3.8 liter supercharge v6 firing order 2000 pontiac grand prix spark plug wire order


For the 2000 Pontiac Grand Prix:
I do not know if you have the 3.1L V6 or the 3.8L (including Super Charger) V6; however I have included both below...

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
......(back).......
'...1....3....5...'
____________
'...2....4....6...'
.......(front)
Ignition Coil Connections:
.'.5..2.'..'.3..6.'..'.4..1.'


For the 3.8L V6 including the Super Charger:
Firing Order:
1-6-5-4-3-2
Cylinders:
.....(back).......
'...2....4....6...'
____________
'...1....3....5...'
......(front)
Ignition Coil Connections:
(back)
o 6
o ---3
___
o 2
o ---5
___
o 4
o ---1
(front)

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

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1 Answer

1988 grand prix coil pack firing order diagram


Here is a firing order diagram to help assist you, and let me know if you need any help to understand this diagram, or if you require any further assistnace.


970c484.jpg

Oct 02, 2010 | 1988 Pontiac Grand Prix

2 Answers

Not getting any spark 1995 pontiac grand prix se 3.1 engine please help


the cheapest and quickest way to check for spark is replace your crank sensor if youve done this and you still have no spark then try a coil pack.

Mar 27, 2010 | 1995 Pontiac Grand Prix

1 Answer

Have 1988 pontiac grand prix se with 2.8 v6


My sincere apologies for the delayed response.
I am personally going back to answer your unanswered question.


For the 2.8L
Firing Order:
1-2-3-4-5-6

Cylinders:
......(back)
1.......3.......5
2.......4.......6
......(front)

Ignition Connections (Spark Coils):
........(back)
.|.1..4.|.|.6..3.|.|.2..5.|
........(front)

Again my apologies....
Let me know if this helped...

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Firing diagram for a 1996 grand prix. 6 cylinder.


For the 1996 Pontiac Grand Prix:
I do not know if you have the 3.1L V6 or the 3.4L DOHC V6; however I have included both below...

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
......(back).......
|...1....3....5...|
____________
|...2....4....6...|
.......(front)
Ignition Coil Connections:
.|.5..2.|..|.3..6.|..|.4..1.|


For the 3.4L DOHC V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.....(back).......
|...1....3....5...|
____________
|...2....4....6...|
......(front)
Ignition Coil Connections:
(back)
o <---4
o <---1
___
o <---6
o <---3
___
o <---2
o <---5
(front)

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





Nov 08, 2009 | 1996 Pontiac Grand Prix

1 Answer

My car will turn over but will not crank. I have changed the spark plugs and also the fuel filter 1983 pontiac grand prix. Not sure what it will be please help


if you have a 3.1 or the 2.8 the coil packs are on the bottom front of the motor. see if your get fire from that ok . but iam pretty sure its your coil . have a nice day

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