i just purchased a 97 eclipse..when starting, it has a loud knock when idleing,but when i rev to two grand it stops..When i rev really high you can hear a little..what is cause of this?

Asked by Apr 05, 2012 at 02:40 PM about the 1997 Mitsubishi Eclipse GS

Question type: Maintenance & Repair

14 Answers

3,445

my gess is that the motor is probly shot sorry to say or it dosent have any enough oil

1 out of 1 people think this is helpful.
108,675

3.0 v 6?

108,675

If so how many miles?

1 out of 1 people think this is helpful.
108,675

If its over head cam could possibly be the Hydualic lifters. Mitsubishis lifters tend knock with age. Stock ones have smaller oil channels that tend to get stopped up. If this is the issue doing a sea foam treatment on your oil could help for awhile but I would make plans to replace them soon. Hope this helps

285

its either a lifter or a valve sticking

6,605

First off the Eclipse didnt have a 3.0L till 2000 model year, they all had the 420A 2.0L DOHC with or without turbo's. If you hear it from the lower end it's probably a rod bearing, and if it is noticeable from the upper end more than likely a lifter or rocker. There isn't too many Eclipses or Talons that havent been abused horribly left.

285

chris your right just wanna add if its a gst or gsx it would have the 4g63 but other than that you nailed it man

6,605

Right on Ryan, my bad everybody wants help on here but if you cant hear it how the hell do you help em out.

285

for sure man i own a 95 talon 5speed and a 98 eclipse both 420a cars the chick i got the eclipse from ran a turbo with stock internals and and fucked the head so thats gonna be the 4g63t car :) but im happy with em both both have the 5 speed so im all set might be getting a 97 gst when i get a job so fingers crossed lol

6,605

Ahhhh. I miss the 80's and 90's Mopars an Mitsubishi's the last true in my mind turbo cars.

285

yea with the new cars only ones id take would be a evo

35

try to put in some restore the next time you change your oil i have a 2000 eclipse that the lifters were knocking and that got them to stop.

5

if the lifters are not the problem my next step would to be replace the oil pump also the oil pick up screen

45

Your motor is blown unfortunately. My 99 did this. Its a rod bearing that has spun. at idle it will knock loud cause of the low rpm engine spped. when you rev it the engine speed increases and the bearing may spin into or close to the correct position causing it to quite but that would be my opinion from experience.

Your Answer

Add photo

Related Questions

  • Is it really necessary to use premium gas in a 2004 Eclipse GTS? 12 answers

    I have recently purchased the GTS and since the gas prices have gone through the roof, I was wondering if it was necessary to use Premium? What octane should I not go below?

    2004 Mitsubishi Eclipse GTS

    -

    Maintenance & Repair

  • 98 2.0 eclipse error codes p0171/p0301 70 answers

    My daughter has a 98 mitsubishi eclipse 2.0.129,000miles she has replaced the plugs and wires, It has error codes p0171 and p0301 lean fuel, i have checked for vacuum and gasket leaks with brake clean...

    1998 Mitsubishi Eclipse GS

    -

    Maintenance & Repair

  • engine knocking 3 answers

    I have recently purchased an eclipse. When u start the car up u hear a knocking. We have determined that it is one of the valves knocking. When u raise the rpms it gets louder and then fades away. ...

    1996 Mitsubishi Eclipse Base

    -

    Maintenance & Repair

  • is it common for the eclipse to have a knocking noise in the motor and how do u fix it 40 answers

    1997 Mitsubishi Eclipse GS

    -

    Maintenance & Repair

  • Revving to high after starting 3 answers

    would not start and after a boost it is revving up too high

    1997 GMC Sierra 1500

    -

    Maintenance & Repair

Eclipse

Looking for a Used Eclipse in your area?

CarGurus has 1,331 nationwide Eclipse listings starting at $1,500.

ZIP:

Search Mitsubishi Eclipse Questions

Mitsubishi Eclipse Experts

#1 dandyoun
dandyoun
Reputation 1,580
#2 Daniel Foster
Daniel Foster
Reputation 720
#3 Tom Demyan
Tom Demyan
Reputation 380
View All

Related Models For Sale

Used Mitsubishi Eclipse Spyder
12 Great Deals out of 546 listings starting at $2,495
Used Ford Mustang
372 Great Deals out of 46,777 listings starting at $1,500
Used Mitsubishi Lancer Evolution
14 Great Deals out of 503 listings starting at $9,950
Used Honda Civic
499 Great Deals out of 87,505 listings starting at $1,499
Used Chevrolet Camaro
156 Great Deals out of 32,836 listings starting at $1,995
Used Mitsubishi 3000GT
86 listings starting at $4,995
Used Honda Civic Coupe
141 Great Deals out of 17,454 listings starting at $1,500
Used BMW 3 Series
945 Great Deals out of 33,285 listings starting at $1,000
Used Toyota Supra
45 listings starting at $47,888

Used Cars For Sale

2012 Mitsubishi Eclipse GS For Sale
23 listings starting at $4,950
2011 Mitsubishi Eclipse GS For Sale
21 listings starting at $7,988
2009 Mitsubishi Eclipse GS For Sale
6 Great Deals out of 143 listings starting at $3,500
2008 Mitsubishi Eclipse GS For Sale
3 Great Deals out of 122 listings starting at $3,395