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Mitsubishi Diamante Maintenance and Repair

82 messages,  Last post on Nov 22, 2009 at 10:17 AM

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What is this discussion about? Mitsubishi Diamante, Heating / Cooling, Sedan

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#36 of 82 Need maintenance schedule by crobertson Apr 09, 2007 (11:12 am)
I recently bought a 03 Diamante (which I dearly love, so far). I had to get the owners manual myself, but it doesn't give the recommended mileage for maintenance, only what to do and how to do it. would someone happen to have  that info, it surely wouldn't be very much. I've already tried the maintenance program from edmunds, they don't have any info. I sure would appreciate it!!
#37 of 82 Re: Check Engine Light for Diamante 2002 [88oldscutlassc] by diamoney Jun 01, 2007 (11:29 am)
Replying to: 88oldscutlassc (Dec 24, 2006 6:34 pm) Heater core was between 400-500 bucks.. I did the rotors on all four, and replaced the pads in the back for under $200.00, and about 2 hrs..   In response to my previous issue, the rear nuckle bushings were replaced and solved my problem.. apparently it is pretty standard on these cars.. $400.00 at the stealership.
#38 of 82 Idling. by diamoney Jun 01, 2007 (11:33 am)
Question.. As the seasonal temp rises my car starts to act up a bit. In stop/go traffic on a warm/hot day, my cars idle will slow almost to a stall, then jump back up.. If I put it in neutral, it stays fairly steady, then I pop it back in gear when I need to advance. I have a little less of an issue if I switch the A/C off, but then I sweat my balls off..   Any suggestions?? I was thinking I should replace the plugs.. I have at least 60K on them.. If that is a good idea, how do I get to these.. I can't seem to see them when I pop the hood..   suggestions?? Replies to this message: jtkramer6 (Sep 14, 2007 8:40 pm) diamoney (Sep 15, 2007 11:00 am)
#39 of 82 Diamante Problems!!???Please help by tonga1 Jun 13, 2007 (2:48 pm)
I have a Diamante 1994 .It has a GA 12 engine, model E F12A TRHE and Chassis No F12A-3009787.   Problem:         The engine starts than after a while the engine starts to get slower and then it stall.When I pop tthe gear into parking or reversing it doesn't go anywherre.It has a rattling sound underneath the machine when it does this..Please Help
#40 of 82 ldelaney by ldelaney Jun 30, 2007 (3:00 pm)
Hey, the major company had to replace the tranny and tcm to fix the hard downshift problem. Have another problem that actually predated the tranny. 97 Diamante starts fine first thing in the am and then is hard to start most of the day after that. Replaced the IAC, MAF, throttle body, egr valve, vacuum lines, spark plugs, distributor cap, TPS and a couple of other things that I can't remember. Has an erratic idle also, sometimes around 800 then up to 1800. When it is around 1800, you can bet it will die and be hard to start. Any ideas?
#41 of 82 '95 Diamante 3.0 SOHC won't start by jbnc1 Jul 04, 2007 (2:04 pm)
I bought my D in Oct. of '05, since then i've been replacing original parts about every 90 days. Last week it started running hot til one morning I was driving it on the hwy when it shut off when I took my foot off the accelerator. I have now learned that the intake gaskets were melted down to the metal allowing the fluids from the radiator to drain into the exhaust. I've had the gaskets changed, heads and valves checked, replaced the timing belt and etc., new spark plugs and wires, and new fuel filter. When I attempt to start it, it is still spitting fluids from the tail pipe. what else must be done to start her up?
#42 of 82 2000 Mitsubishi Diamante by jbooth5 Jul 10, 2007 (2:08 pm)
I have a problem with this annoying clicking sound when I start my Diamante. It only last for about 20 seconds, and it goes away. If I turn the temperature dial above 70 degrees, the clicking sound stops. If I turn the temperture below 70 degrees, the sound starts clicking. Does anyone have any ideas of what my problem might be? Replies to this message: diamoney (Jul 12, 2007 2:58 pm) doiturself (Oct 03, 2009 12:29 pm)
#43 of 82 Re: 2000 Mitsubishi Diamante [jbooth5] by diamoney Jul 12, 2007 (2:58 pm)
Replying to: jbooth5 (Jul 10, 2007 2:08 pm) j, If you have automatic climate control, more than likly your bearings are going out on your blower-fan. I have had the same deal happen in other vehicles where the fan would not come on until you tapped the motor on the fan. You can deal with the 'chirping' or replace the fan or fan motor. Replies to this message: doiturself (Oct 03, 2009 12:29 pm)
#44 of 82 '94' DIAMANTE by jefany4 Aug 03, 2007 (6:07 am)
here's my question..........when i use the key to open the doors(factory installed alarm)the locks open then close so quick i cant get in unless i use one hand to unlock and the other to pull the door open.........i have no remote........just the key. is their a cure to stop this rapid lock.......its annoying in bad weather.............thanks,Jeff
#45 of 82 2002 DIAMANTE - Having Alternator/Battery issues by mdfall Aug 12, 2007 (3:08 pm)
Hello all I have problems with my alternator. It is over charging the battery (which gets hot to a boiling point). My friend who is mechanic helped me replace the Alternator and the battery. I have both of them new. Now despite the new parts, the issue keeps coming back. I had to replace a second time the alternator and the shop agreed to give a new battery too. Today the mechanic told me that he needs to replace the Battery Relay (located in the fuse box).   On top of that, when I drive the car on the highway (60 mph), the car over heats. When it is stopped and on idle it looks normal. Are the issues related? Please help me come up with a solution. Thanks.

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