Question about Mitsubishi Lancer

Open Question

I have a 1998 mitsubishi lancer with a 4g93 engine. when the car is warm it sometimes doesnt idle at a stable level. EG when the car is in neutral the revs drop as low as 450 then it revs itself back up to about 700-750 revs which it what it used to be at when warm. But it then drops and then rises again. when i rev the engine the brightness of the lights on the car get brighter so i am thinking it could be something to do with the alternator. i first noticed this problem about 1 day after i was driving in heavy rain and accidently went through a large puddle. any comments would be helpful, thanks

Posted by on

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 2 Answers

SOURCE: Lancer cedia 2001 4g93 1800cc

in addition to what the wiz has said it can also be cause by a faulty water pump (usually mounted on the front of the engine & can be easiliy found by looking for the pullies & belts driven by the engine). Water pump faults can include a faulty or loose pully for the pump ie broken belt, or too much "play" in the belt pully assembly, a leaking water pump, blown gaskets/seals. In short anything stopping or restricting the flow of coolant from your radiator to the engine block is going to cause over heating so also be aware of dodgy radiators & blocked or damaged lines ect. You should be able to easily trace the hoses going from your radiator, engine & pump as this is the path water takes to cool the engine.

Enjoy & good luck!

Posted on Jan 12, 2009

  • 412 Answers

SOURCE: 2006 dodge grand caravan does it have a engine rev limiter?

these vehicles are equipped with a rev limiter..normal operating condition

Posted on Sep 13, 2009

Testimonial: "very quick and to the point response thanks alot"

  • 1 Answer

SOURCE: mitsubishi lancer service engine light comes on and rpm's high

same as mine
2000 Lancer cedia

Posted on Oct 19, 2009

  • 1374 Answers

SOURCE: Car idles erratically-surges and revs up and down

First use a scanner and pull the codes out of the computer.
After you do that go to the shop manual and do exactly what it tells you to do to verify the item/items the code/codes are directing you to.Do the necessary repairs and erase the codes.
Surging and irratic idel as you described are due to a worn/dirty "Fast idle Cam Valve". This valve usually can be found on the fire wall somewhere behind air intake plentium.This valve can be easily tested by removing the two small screws that hold the top plate down and squirting a drop of oil into the valve, then relace the top plate and start the vehicle. The surging should disappear.
If it does you have two options a) clean it with gum out and hope it worked.b) replace it Its not that pricey and fairly simple to do. Use the shop manual if you decide to do this. Replacement is the better option.
With regards to the temp. gauge on dash board its either the wiring , the temp sensor its attached to, or the gauge its self.
If it has one wire coming from the temp sensor ,put the key in the ignition turn to on position BUT DON"T start the vehicle . Then ground the wire from the sensor and look at the gauge if it moved to the overheat position the gauge works and the wiring is good . Therefore, the sensor is most likely the culprit. If there is more than one wire coming from that sensor use the shop manual to test the items invovled.
If you still believe the engine isn't getting warm, let it idle for a while and turn on the heater. If your getting heat your ok. To double check it without any fancy equiptment see if the cooling fan comes on. Good luck

Posted on Mar 04, 2010

Testimonial: "Thanks for all your help-very good advice!"

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hi, I have a 2005 Mitsubishi Lancer Wagon, 4G93. It wont rev over 4000. It has no error codes, I changed the Mass Air Flow intake sensor and no change.


If your in park or neutral, the PCM stops the engine from revving up to high. If your driving, then the fuel filter is clogged up.

Dec 06, 2015 | Mitsubishi Cars & Trucks

1 Answer

Can't seem to find the manual transmission gear box's oil drain plug on my Lancer 2005 4G13 engine?


I hate to point out the obvious - but are you sure it is a 4g13 engine? That is mitsubishi's 1.3l engine. Your profile has no info saying what country you are from - but I think all 2005 mitsubish lancer engines will be >1.3L
There is a 4g93 1.8l dohc engine.

Feb 20, 2010 | 2005 Mitsubishi Lancer

1 Answer

Car cuts out at idle


idle control valve. bad plug wires and bad plugs will all cause that as well as a air leak in the vacumn hose on galant

Jan 21, 2010 | 1998 Mitsubishi Galant

2 Answers

1992 Mitsubishi Lancer GSR, 4wd 1.8 dohc turbo, cd5a, 4g93-t engine.


first thing to do is remove spark plugs and if they smell really fuely you will need to change them if that doesnt help you will need to get the microtech tuned for a good coldstart , this depends on if its running stand alone or as a piggy back
cheers.
please leave feedback.

Jun 30, 2008 | 2002 Mitsubishi Lancer

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

122 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Experts

yadayada
yadayada

Level 3 Expert

75197 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7782 Answers

Are you a Mitsubishi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...