Question about Mitsubishi Diamante

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Where is the ECU located on a 2002 Mitsubishi Diamante? I have check engine code 1751 and had a leak in the heater core and do believe this is the issue.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: what is the easiest way

2002 diamante heater core sits in center of the dashboard just over the on board computer for the car. To access it you need to take out the console between the seats and the entire dashboard to get to it. The only thing wrong with the heater core is the leaking gaskets (about $10 in parts). Mitsubishi knows about the problem and when the dash is taken apart you will see a plastic sheet over the onboard computer to somewhat protect it from the leaking heater core gaskets. So the expense in the repair is in the labor to get it all apart and back together again. The dealers seem to replace entire heater core when they fix this problem. I did just the gaskets and that solved the problem. I have read others who did it themselves only replaced the gaskets and that solved it for them as well. Maybe the dealers think you will feel better replacing a larger part for so much labor.

Posted on Feb 18, 2009

badealer888
  • 414 Answers

SOURCE: MY HEATER CORE IS LEAKING IN MY 2002 DODGE RAM

You will have to remove a large portion of the dashboard. It is on the pasenger side, lower section.

Posted on Jun 23, 2009

inspectmycar
  • 233 Answers

SOURCE: 2002 Mitsubishi Galant has water draining into the

the ac drain is more than likley stopped up, they tend to get clogged with debri not allowing the condensation from the evap. core to drain properly, thus allowing it to leak into the floorboard.

Posted on Sep 16, 2009

  • 98 Answers

SOURCE: have wet drivers floor, believe heater core leak

Check to see if the liquid is the same as whats in the radiator, if yes then yes it is the heater core. You would have to pull the dash out to replace the core and could proove to be a bad experience because of the air bags and not knowing the steps to pulling the dash. The job calls for about 5 hours not including evacuation and recharging the a/c. so depending on the shops hourly rate im guessing it would cost somewhere around 600 to 700 hundred dollars.

Posted on Nov 29, 2009

GARYca
  • 672 Answers

SOURCE: i scanned and get codes 1751 pd and 1751 trans

P1751 A/T Control Relay>>>Check power circuit to automatic trans (A/T) control relay, AND RELAY ITSELF FOR PROPER OPERATION!!

Posted on Oct 10, 2010

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2 Answers

I have a check engine light on my 2002 diamante so I'm trying to find the diagnostic port and I've had no luck. Please help!


I believe there's a standard location. When you are sitting in the driver's seat, it should be to your left, near the door, and right under the dash. The plugs look a little bit like the main port in a desktop computer.

I really hope this helps you locate your port.

Jan 27, 2011 | 2002 Mitsubishi Diamante

1 Answer

Code P0455 evaporative emission system leak ( large leak) 2002 Mitsubishi diamante


Could be a number of things...rusty filler neck, or a bad "vent solenoid." These are more common. The evap system closes once you are driving it to send fuel vapors to a charcoal canister, and if it can't due to a leak, your check engine light will go on.

Dec 09, 2010 | 2002 Mitsubishi Diamante

1 Answer

How do you remove the heater core for a 2002 Mitsubishi Diamante?


the dealer quote is over a grand, but from my understanding you can remove the glove box compartment and not have to go through the whole dash being taken apart.. not an hours job by any means but supposebly doable..

Nov 01, 2010 | 2002 Mitsubishi Diamante

2 Answers

I scanned and get codes 1751 pd and 1751 trans will not shift 2001 diamante


P1751 A/T Control Relay>>>Check power circuit to automatic trans (A/T) control relay, AND RELAY ITSELF FOR PROPER OPERATION!!

Oct 10, 2010 | 2001 Mitsubishi Diamante

1 Answer

2002 Mitsubishi Lancer leaking water under glove box and a noise in that same area becoming more noticeable. Air conditioning unit?


Typically, when you have water leaking from underneath your glove box, that means that your heater core is leaking. Your heater core is basically a small radiator located inside your car, just behind your glove box, thjat a fan blows through for the purpose of warming the interior of your car and defrosting the inside of your windshield. This core is fed water via your engines water pump, from your engine where the water is heated, through the heater core and back through the radiator located under the hood of your car and through the engine once again, in a continual cycle. What happens after time, the heater core is of a much thinner construction than your radiator and will corrode through in a much lesser time. The other things which commonly occurs in the heater cores today, is that when your car overheats or blows a head gasket, it will allow the exhaust gas from your engine into your water system and create a tremendous amount of pressure. The heater core is not designed to deal with this extra pressure and typical blows out and leaks water onto the floor board of the passenger side of the vehicle. Heater cores are not all that expensive a part, but to replace it, can be quite difficult on some make and model cars. This information applies to most all make and model cars both previously and currently produced.

Jul 17, 2010 | 2002 Mitsubishi Lancer

1 Answer

How to change it a heater in a 2001 mitsubishi diamante


Why do you think you need a heater? Has the fan stopped blowing or are you referring to the need to replace the leaking gasket in the heater core?
If you take it to a mechanic for the heater core gasket, you can expect $1200-$1400 just to replace a $0.80 part. It is very labor intensive but can be done yourself if you have about 6 hours.

Nov 19, 2009 | 2001 Mitsubishi Diamante

1 Answer

2002 Diamnte does not defrost, smells like antifreeze


If you are smelling antifreeze then there is going to be a leak.
Look at the drain hole for the A/C drain pan. You may not be seeing it because it is mixing with the condensation from the evaporator. Sounds like a heater core or hose connection at the heater core.
Good Luck

Nov 23, 2008 | 2002 Mitsubishi Diamante

1 Answer

What is the easiest way to replace the heater core in a 2002 mitsubishi diamante


2002 diamante heater core sits in center of the dashboard just over the on board computer for the car. To access it you need to take out the console between the seats and the entire dashboard to get to it. The only thing wrong with the heater core is the leaking gaskets (about $10 in parts). Mitsubishi knows about the problem and when the dash is taken apart you will see a plastic sheet over the onboard computer to somewhat protect it from the leaking heater core gaskets. So the expense in the repair is in the labor to get it all apart and back together again. The dealers seem to replace entire heater core when they fix this problem. I did just the gaskets and that solved the problem. I have read others who did it themselves only replaced the gaskets and that solved it for them as well. Maybe the dealers think you will feel better replacing a larger part for so much labor.

Sep 28, 2008 | 2000 Mitsubishi Diamante

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