Question about 1994 Mitsubishi Diamante

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Does anyone know exactly how to remove alt from 94 Diamante SOHC

Does anyone know exactly how to remove alt from 94 Mitsubishi Diamante, 3.0L, SOHC?

I would really prefer help from someone who has actually replaced one themselves before, because when I read the reposes to other people who have asked the same question on other sites, none of the answers were from hands on experience. The diagrams they send really don't help, I tried them.

Chilton's diagram does not work, even if you remove all the additional parts as they suggest, you cant get it past the rear manifold.

I have the alternator is completely detached, I just can't get it out of the small pocket it is stuck in.

I don't know where to start! There must be trick to getting it out of there.

Thanks !!!

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1994 Mitsubishi DIamante, v-6, I am a mechanic with 27 + years of professional expierience and I have done this job probably 20 times this year alone!, ALL manuals will tell you to remove the intake and pull it out from the top along the firewal, yeah right, thats great if you wanna spend about 2 days ripping it apart and putting it back together and spend on parts and gaskets!, The simpelest and easiest way that I have found that DOES really work to get your altenator out is to remove the front drivers side wheel, unbolt the steering knuckle, rack, stabilizer bar and basically everything else attached to the front wheel assembly (make sure you mark everything with a greese pen so that when you reinstall and reattach everything it all lines up correctly and you wont have to spend any extra on an alignment, than you will have just enough room to easily pull the altenator out from the wheel well, installation is the exact same as the removal, and you didnt have to unbolt or remove any motor mounts or your intake and everything else along the firewall side of your engine!, it should take you only about 45 minutes to get it all out and probably about an hour or so to install your new altenator. This method does actually work!

Posted on Dec 18, 2009

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You need to unbolt the back and driverside motormounts. then lift the back of the engine up as far as it can go. disconnect the alt. and u should be able to bring it from the front to the back of the engine going against the firewall. u may have to play with it a little bit to get it out and it will go in the same way. i have done it four times in on year on my car. they dont last long. if u need any mor help on it u may contact me at

Posted on Jun 29, 2009

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I just did an alternator replacement on my 93 Diamante, and it is a doozy. I'm a professional mechanic and I have quite some experience with this kind of stuff too. The alternator will not just come out, even after removing the belt / bolts / axle (for access).

The trick is to push the now loosened alternator up and back then turn it 180 degrees so that the pulley side is inward. then you can work it out if you properly use the shallow depression in the **** main beam while avoiding the chunk of aluminum that protrudes from the engine block near the timing belt cover. At first you will swear it cannot come out. You can also use a prybar to GENTLY push up the motor between the subframe and the oil pan. Do not push hard. The alternator will come out if you wiggle and jiggle it.

I used a lift and had complete access to this area and it was still horrible. Good luck.

Posted on Jun 11, 2009

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Your 1999 Mitsubishi Diamante is a 3.5L MFI SOHC 6cyl engine.
MFI = multi-port fuel injection
SOHC = single overhead camshaft
This answer covers Mitsubishi Diamante1.8L, 2.4L, 3.0L (SOHC and DOHC), 3.5L, and 1997-2000 1.5L Engines.

2.4L engine shown, others similar.

Fig.1 - CKP position and its two mounting bolts

In Fig. 1, the two arrows point to the CKP (crankshaft position sensor) mounting bolts to remove. 2.4L engine shown.

Fig.2 - CKP reluctor removal
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1. Disconnect the negative battery cable.
2. Remove the timing belt.
3. Unplug the sensor connector.
4. Unfasten the two retaining bolts, then remove the CKP sensor from the vehicle.
5. Installation is the reverse of the removal procedure.

Reference: Autozone online repair guide: Mitsubishi Galant/Mirage/Diamante 1990-2000, at

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