Using the AC causes the engine to heat up.

Asked by Jun 29, 2016 at 06:40 AM about the 2002 Mitsubishi Lancer

Question type: Maintenance & Repair

I drive a Mitsubishi Lancer 1993, using the AC causes the engine to heat up
when I am driving in traffic or on the highway, and it starts cooling down to
normal levels once I turn off the AC.
The coolant levels are good, both fans are running as expected, the radiator is
not clogged in any way.

3 Answers

56,905

Depending on what the temp. is outside and caught up in traffic, there would be insufficient cool air flow for the engine cooling system. Maybe an engine flush could do some good, coolant in the system may be old.

11,555

"I drive a Mitsubishi Lancer 1993" on such an old vehicle complete inspect the entire cooling system, Radiator, water pump, thermostat, hose and belts. A radiator can appear Ok but have lost a lot of cooling capability after 24 years! The AC compressor can be over loading the engine worn out? Check it too.

my 2013 AC is not working on passage side. Shop said a pen or some object might be stuck. How do I see if this is so without the dealer taking apart my hole dash.....

Your Answer

Add photo

Related Questions

  • Why does engine temperature drop to almost cold when I go down hill? 4 answers

    My car was overheating, and thank God I caught that and made it to the mechanic. He switched the thermostat, but the radiator still wasn't heating up. He tried putting a hole in the t-stat, didn't hel...

    2006 Mitsubishi Lancer ES

    -

    Maintenance & Repair

  • 2002 mitsubishi lancer oz rally a/c heater issue 1 answer

    Ok so at first my a/c or heat woul ne running full blast then just cut off. Then it would come on slow then pick up to full power. N make a bubbling sound. Now it doesnt come on at all. Any idea w...

    2002 Mitsubishi Lancer O-Z Rally

    -

    Maintenance & Repair

  • my lancer doesn't start it 13 answers

    PLEASE I NEED HELP!!! MY LANCER DOESN'T STARTER WE CHECKED THE STARTER THE BATTERY IS NEW BECAUSE I THOUGHT WAS THAT BUT NOTHING SOME ONE KNOWS ABOUT THIS KIND OF CARS MAYBE ANY SENSOR? I CHANGE THE P...

    2003 Mitsubishi Lancer ES

    -

    Maintenance & Repair

  • mitsubishi galant heater problems - only heats one side 12 answers

    2004 mitsubishi galant only throws heat out on the passenger side and not drivers side. (I add stop leak to my coolant about 2 weeks ago because I had a slow leak in a line. I had issues with the a/...

    2004 Mitsubishi Galant ES

    -

    Maintenance & Repair

  • Electrical Problem 4 answers

    I have a 1999 Mitsubishi Galant. Recently it would not start when I was leaving for work, when the car was jumped the car started but the next day it did it again. So therefor I went out and bought a ...

    1999 Mitsubishi Galant ES

    -

    Maintenance & Repair

Lancer

Looking for a Used Lancer in your area?

CarGurus has 504 nationwide Lancer listings starting at $3,295.

Postal Code:

Search Mitsubishi Lancer Questions

Mitsubishi Lancer Experts

#1 FordNut
FordNut
Reputation 280
#2 Daniel Foster
Daniel Foster
Reputation 170
#2 T_S_T
T_S_T
Reputation 170
View All

Related Models For Sale

Used Mitsubishi Lancer Evolution
4 Great Deals out of 44 listings starting at $16,985
Used Honda Civic
280 Great Deals out of 4,063 listings starting at $995
Used Subaru Impreza WRX
6 Great Deals out of 95 listings starting at $10,295
Used Toyota Corolla
177 Great Deals out of 3,659 listings starting at $1,986
Used Subaru Impreza
31 Great Deals out of 657 listings starting at $2,995
Used Ford Mustang
4 Great Deals out of 940 listings starting at $4,500
Used Mitsubishi Eclipse
41 listings starting at $3,800
Used Honda Accord
91 Great Deals out of 1,079 listings starting at $1,990
Used BMW 3 Series
123 Great Deals out of 1,783 listings starting at $2,995
Used Chevrolet Camaro
987 listings starting at $13,995

Used Cars For Sale

2017 Mitsubishi Lancer For Sale
54 listings starting at $16,999
2016 Mitsubishi Lancer For Sale
72 listings starting at $14,495
2015 Mitsubishi Lancer For Sale
20 Great Deals out of 89 listings starting at $12,988
2014 Mitsubishi Lancer For Sale
62 listings starting at $9,700
2013 Mitsubishi Lancer For Sale
4 Great Deals out of 59 listings starting at $8,990