Question about 2004 Mitsubishi Diamante

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How i change the spark plugs in a 2004 mitsubishi diamante

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  • 207 Answers

Intake plenum removal will be needed to access the plugs.

Posted on Dec 11, 2014

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Posted on Jan 02, 2017

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SOURCE: changing transmission filter on 1999 mitsubishi diamante

You basically have to unbolt the oil pan and then replace the filter inside.

Posted on Jul 18, 2008

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SOURCE: 2004 Mitsumishi Endeavor

The front three should be easy enough. They are right in front of the intake plenum. (big black plastic looking thing on top of the engine. The back three are underneath the intake plenum. It seems like a lot to tackle but it is really not that bad.
As always, if you are not sure you have the skills to attempt this go to a qualified mechanic. I did mine in an afternoon.

Posted on Jul 21, 2008

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SOURCE: Change spark plugs

Remove the intake baffle if equipped (5 10mm screws), then remove the coilpacks/wires (10mm bolts), then remove sparkplugs (use 5/8" socket)

Posted on Sep 10, 2009

  • 14036 Answers

SOURCE: My spark plugs in my

YOU NEED LONG SPARK PLUG SOCKET. NEED A 3/8 INCH RATCHET WRENCH.YOU NEED EXTENSION.YOU NEED SPARK GAUGE YOU NEED A TORQUE WRENCH. NOT MANDATORY JUST DONT OVER TIGHTEN SPARK PLUGS STRIP ALUMINUM THREADS WAIT UNTIL ENGINE COOL TO KEEP FROM WARPING THE HEADS. SPARK PLUGS LOCATION ON TOP OF CYLINDER HEADS.TO GET TO SPARK PLUGS THE COILS ON TOP EACH SPARK PLUG.HAS TO BE REMOVED BY REMOVING SMALL SCREW.THAT HOLD COILS DOWN.AND CHANGE ONE SPARK PLUG AT A TIME SO YOU WONT GET THEM MIXED UP.GAP PLUGS AT 0.028 - 0.031

Posted on Jan 28, 2011

archaeology
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SOURCE: Mitsubishi Diamante 2001, Car Will Not Start, Attempts to Crank, But no Fire. Blowing Engine Control Fuses repeatedly.

For the sake of completeness, here's the full no-start Troubleshooting Guide for the 2001 6 cylinder 3.5L MFI Mitsu Diamante, but the problem with your car is line item #6 - the ECC (Engine Control Computer) is shorted/dead. Without an ECC, the Diamante will (a) get no spark, since the ignition timing comes from the computer, and (b) get no fuel, since the fuel injectors are operated by the computer as well. The engine will turn over, since running the starter motor is a non-computer controlled matter of a correctly functioning ignition switch, a charged battery, and good wiring to a functional starter motor/solenoid, but will never start.
The clue pointing directly to the ECC failure is the blowing ECC fuses. These fuses are blowing to tell you that the ECC is shorted dead.
Since the ECC is expensive, exhaustively check out all other possible sources of the problems, but with so few problems causing loww of both spark and fuel, combined with the blown ECC fuses pointing directly to the ECC, it seems that the ECC is the only culprit.
Here's a used 2001 Mitsu Diamante ECC at Ebay for $175.

http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=270828804340+&item=270828804340&lgeo=1&vectorid=229466


Priority Action Part Type Cause
1 Inspect Choke - Stuck or Improperly Functioning Choke.
2 Inspect Fuel Filter - Clogged or Dirty Fuel Filter.
3 Inspect Fuel Pump Relay - Faulty Fuel Pump Relay.
4 Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator.
5 Inspect Fuel Pump - Low Fuel Pressure.
6 Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC.
7 Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.
8 Inspect Ignition Switch - Improperly Connected or Faulty Ignition Switch.
9 Inspect Battery - Battery Discharged or Faulty.
10 Inspect Battery Cable - Coroded, Broken, Shorted or Poorly Connected Battery Cable.
11 Inspect Solenoid - Starter Solenoid Faulty.
12 Inspect Starter - Starter Motor Faulty.
13 Inspect Wireset - Worn or Damaged Spark Plug Wires.
14 Inspect Ignition Coil - Faulty Ignition Coil.
15 Inspect Distributor Cap - Loose, Cracked or Worn Distributor Cap.
16 Inspect Spark Plugs - Incorrectly Gapped or Fouled Spark Plug(s).
17 Inspect Distributor Rotor - Loose, Cracked or Worn Distributor Rotor.
18 Inspect Fuel Tank - Fuel Tank Empty.
19 Inspect Carburetor - Worn, Faulty or Damaged Carburetor.

The fuel pump strainer is a sock-like strainer in the fuel tank on the input side of the fuel pump designed to protect the fuel pump by straining out any debris in the tank (similar to the way that the fuel filter protects the engine/fuel injectors/fuel pressure regulator).

Posted on Nov 27, 2011

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1 Answer

I need to know how to change the spark plugs in the back of a Mitsubishi diamante 1994 - the car seems to have a miss. Please help! The wires are sparking fire


In some cases, you may have to do it from under the car, using swivels and extentions. In other cases, you may have to remove the front motormount, and rock the motor a bit.

Dec 13, 2014 | 1994 Mitsubishi Diamante

1 Answer

My 1993 Mitsubishi Diamante will not start in cold. Also when it finally does decide to start it'll shut off. The electronics stay on, but the car cuts off. I'll drive it to the store and walk in to buy...


when was the timing belt last changed. ? could be this.
also check breather lines all of them there may be a blockage.
check spark plugs and leads this can also lead to this fault. an damaged or week lead or spark plug will take more to get going. leads can wear out and go hard and crack inside. spark plugs gaine in the gap size over time.

Oct 15, 2013 | 1993 Mitsubishi Diamante

1 Answer

Changing spark plug 2003 diamonte


Hi, to change the spark plug, remove the engine cover and intake manifold plenum. Remove the spark plug cables. CAUTION: When pulling off the spark plug cable from the plug always hold the cable cap, not the cable. Remove the spark plugs.
Hope it helps.....

Jul 12, 2011 | 2003 Mitsubishi Diamante

3 Answers

Spark plug firing order diagram of a 1997 mitsubishi diamante


I assume you have the 3.5 Liter engine. If not, please get back to me.
Firing order: 1-2-3-4-5-6 Distributor rotation: Counterclockwise jturcotte_226.gif

Nov 20, 2010 | 1997 Mitsubishi Diamante

1 Answer

I need a diagram for changing spark plugs on 2002 diamante


Hi,
Get some tape - mark each spark plug wire with a piece of tape long enough to go around the plug wire and an extra 2 inches - -on that two inches left over - write the cylinders on the tape with a majig marker - 1 2 3 4 5 6 and so forth - then put the wire back on the plug. For settings - call the dealer of the car with the VIN number in hand. They will tell you of any changes and the exact plug to buy.
Thanks
Gary Rice

Apr 20, 2010 | 2002 Mitsubishi Diamante

1 Answer

Car Shaking


different things are happening here. get wheels balanced, and motor checked.

Apr 24, 2009 | 1992 Mitsubishi Diamante

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