Question about 1999 Mitsubishi Eclipse

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I just bought a 1999 eclipse rs...its does not run...my buddy who owned it before me ran it hard. Are there common problems with the 420a engine that would cause the engine to stop working? Are there common cooling problems in this car?...I think he probably overheated it..but he doesnt know for sure why it died on him.

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I would do a cylinder compression test, that will tell the story, if bad compression in any cylinder's, head will have to come off to repaired, more then likely engine ran hot. If your going to fix it, also replace timing belt and water pump while in there.

Posted on Aug 03, 2010

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1 Answer

Car starts up but dies immediately.


Use a bottle of yellow HEET dry gas to remove any moisture problem in the fuel.

Clean / replace air filter.

If there is check engine light on then please pull code.

Jan 18, 2014 | 1998 Mitsubishi Eclipse

2 Answers

Swapped a 1999 420A engine into a 1995 eclipse (also a 420A) and we have no spark. We started by checking the cam sensor and it is working properly it is upside down from the 95 but the ASD relay is...


first the cam sensor shouldn't be upside down from the 95. they both should be with the plug facing down. they 95 CAS has a different plug than the 99 CAS.
the 95 has round pins and the 99 has flat pins.

95-96
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97-99
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also the 95-96 relays are opposite the 97-99

95-96
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97-99
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besides that it could be the ecu. i also have heard of the locating pin on the intake cam shearing off, allowing the gear to turn with the timing belt without the actual camshaft spinning.

Sep 27, 2010 | 1996 Mitsubishi Eclipse

1 Answer

TIMING BELT SCHEMATIC ON A 1999 MITSUBIHI ECLIPSE 2.0


Since you didn't specify if you had the turbo or non-turbo engine, i'll give you links to both.
2.0L non-turbo (420a) RS/GS
2.0L turbo (4g63) GST/GSX

Sep 04, 2010 | 1999 Mitsubishi Eclipse

1 Answer

Where is the fuel filter located on a 1999 Mitsubishi Eclipse GS 2.0 L DOHC (420A) engine?


HI. The fuel filter is located in the engine compartment, mounted to the firewall. Extraction will be easier if the air inlet hose and upper air cleaner housing is removed from the vehicle. This will expose the filter and allow for a better extracting experience.

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Jul 06, 2010 | 1999 Mitsubishi Eclipse

1 Answer

Firing order chrysler 420a.In Mitsubishi Eclipse 2.0


1999 Mitsubishi Eclipse GS 2.0 liter DOHC L4

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1999 Mitsubishi Eclipse GSX (AWD) 2.0 liter DOHC Turbo L4

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Hope helps (remember rated this).

Jun 24, 2010 | 1999 Mitsubishi Eclipse

1 Answer

I have an 03 Eclipse RS and my engine is jumpy at start up and stays like that until it dies on me which is about 10 seconds. The Rpm guage jumps between .5 and 1 and sometimes even up to 3. What could the...


WELL I HAVE AN RS TOO I BOUGHT IT LIKE THAT AND THE WHOLE DASH WOULD SHAKE AND I FOUND OUT THAT THEY NEVER GAVE THE CAR A TOTAL TUNE UP AND AND CHECK YOUR HOSE I HAD A LITTLE LEAK OF A VACUM AND THE WHOLE ENGINE WAS RUNNING HARD , I CHANGED THE BELT AND GAVE IT AQ TOTAL TUNE UP MY CAR RUNS GREAT NO SHAKES AND IAM SAVING MONEY ON GAS SINCE THE TUNE UP , IF YOU JUST WANT TOT PIN POINT IT RUN A DIAGNOSTIC CHECK ON IT , OH YEA THE RS HAS ALOT OF RECALLS LIKE THE FUEL LINE CLOGS I TOOK IT IN AND THEY REPLACED ALOT OF STUFF AND IT RUNS GREAT

Jun 08, 2009 | 2003 Mitsubishi Eclipse Coupe

1 Answer

Motor swap


If your planing on swaping the 2.0 non-turbo(420a) to the 2.0 turbo(4g63t) your problem will be that the motor and transmission are on opposite side of one another. My GST has the trans on the passenger side and the motor on the driver. The 420a is just the opposite. If your serious about it you should get the motor rebuilt with higher performance crank, pistons, rods, exc.  And they make turbo kits for the 420a.  But you'll need better fuel delivery and some mild tuning.

Dec 23, 2008 | 1997 Mitsubishi Eclipse

2 Answers

1998 Mitsubishi Eclipse 2.0 non-turbo DOHC engine vin y. Car stalled and turns over but will not start. Towed to repair shop and at first they said it was a defective cam or crank sensor, but now they say...


don't get the "Cardone ECC model 793013" . i just check it out and when you click on the " See all vehicles this product fits " link, it shows this:
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the problem with it is that the '97 PCM will not work on a '98. the pinouts on them are slightly different. The only 2 years that are interchangable are the 98 and 99 year models.
The part number for the correct one is 5293190AC.
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If you get a remanned PCM that needs progamming, anyone or any shop with the correct programming tool can do it.

  • PCM (ECU) REPROGRAMMING

1995~1999 Mitsubishi Eclipse RS & GS with 2.0L non-turbo engine (Chrysler 420A engine) ECUs have been equipped with reprogrammable processors since 1995.
To reprogram Mitsubishi vehicles, you must use one of two different reprogramming tools. For the 1995~1999 Mitsubishi Eclipse RS & GS (with Chrysler 420A engine), you must use a Chrysler Flash Reprogramming Unit, MIT992000-A . Click here to order one from SPX, or call them at 1-800-533-5338.
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I would suggest just buying a used (98 or 99)PCM. Then all you have to do is unplug the old one, take out 3 bolts to remove the bracket/PCM, pull it out, 3more bolts to remove the ecu from the bracket and bolt the new one in place. Its about a 5 min. job.

Nov 29, 2008 | Mitsubishi Eclipse Cars & Trucks

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