2003 Mitsubishi Lancer - Answered Questions & Fixed issues

On your '03 Mitsubishi lancer, if you have tried the other (cheaper) possible culprits, to no avail, you are pretty much left with replacing the fuel pump. On this model it is actually easier than you may think. There is an access point to the fuel pump under the rear seat on the driver side. Easy now, before getting gung-ho and just unhooking wiring harnesses and hoses, remember these lines are under pressure. Prior to locating the access port, turn your ignition to the on position and then proceed to locate the fuel pump relay. Remove the relay and either 1. Crank car and let it run until it cuts off or 2. Disconnect the fuel line under the hood to release the pressure in the line. Either way is sufficient but I prefer the "let-r-die" method myself. No proceed to removing the housing mount bolts, wiring harnesses and hoses. Instillation is the reverse of the removal. Once everything is secure and replaced(pump relay) turn the key to the on position and back about 4 or 5 times before cranking. Should purr like a kitten!

IM also adding the pump diagram as reference if any uncertainties arise. Hope this helps someone with their fuel issue!



2003 Mitsubishi... | Answered on Jul 29, 2019 | 489 views

Get this manual online at www.reliable-store.com and get complete guide on whether to repair or not, service it, and how to repair etc,
along with wiring diagrams, electrical diagrams, torque specs, error codes, everything.

2003 Mitsubishi... | Answered on Mar 13, 2018 | 62 views

You would need to ask a dealer on the specs or contact the car makers . Some thing they would know .

2003 Mitsubishi... | Answered on Jan 03, 2018 | 55 views

honestly no idea ,you would need some dealer only information and doubt they will tell you but do a shrewdy and ask in the stores what the difference is ..

2003 Mitsubishi... | Answered on Nov 26, 2017 | 76 views

hi there.
see if this link helps you to find out why.
2003 Mitsubishi Lancer Steering Colum Noise Google Search

2003 Mitsubishi... | Answered on Nov 19, 2017 | 68 views

most fluid tanks are located behind the drivers side bumper /fender area pump incorporated into tank but test switch and wiring also

2003 Mitsubishi... | Answered on Nov 08, 2017 | 95 views

Check the fuel pump fuses and pressure. Also check the coils

2003 Mitsubishi... | Answered on Oct 25, 2017 | 119 views

In 2003, the Lancer (or equivalent) was manufactured and sold with engine sizes of 1.3L, 1.5L, 1.6L, 1.8L, 2.0L, and 2.4L, depending on where it was manufactured or originally sold. Mitsubishi is an international manufacturer, you know.

2003 Mitsubishi... | Answered on Sep 25, 2017 | 133 views

run injector cleaner in the fuel
clean the faulty injector tip
misfires are more from injector and dirty fuel problems than coils and plugs

2003 Mitsubishi... | Answered on Sep 18, 2017 | 55 views

Those pressures are OK and within specs. I would suspect the cooling issue lies with the air temperature control blend door actuator and or the blend door sticking in the ducting due to warpage.

2003 Mitsubishi... | Answered on Jul 26, 2017 | 221 views

It's usually a sway bar link and/or sway bar bushing.
Disconnect it and try that for less noise before buying parts.

2003 Mitsubishi... | Answered on Jul 24, 2017 | 238 views

A couple of things to try, it may be that your car has an alarm that has been triggered, and the horn is the announcement indicating an 'attempted' theft.

So you can try to find out if this is the case.
If the battery has been drained sufficiently to 'confuse' the electronics, then one way I was able to work around this was to disconnect the main battery and wait a few mins, then reconnect it. The alarm may clear or trigger again.
Sometimes by using your remote you can clear this condition or using your key in the driver side keyhole and going the steps (for my car it was to lock and unlock), for others it could be doing something like this in sequence.

The last resort is to disconnect the horn. (of course then you have no horn and in New York City..this can be a real problem)..good luck

2003 Mitsubishi... | Answered on May 15, 2017 | 220 views

Is Fuse OK?How about a fuel filter.

2003 Mitsubishi... | Answered on Apr 03, 2017 | 36 views

Above radiator outlet hose from the engine side.

2003 Mitsubishi... | Answered on Mar 18, 2017 | 108 views

Inside the fuel tank like every other car since the 1980's

2003 Mitsubishi... | Answered on Mar 01, 2017 | 43 views

Inside the fuel tank.

2003 Mitsubishi... | Answered on Mar 01, 2017 | 69 views

Don't worry about it. The clock has a very minimal draw on your battery and won't drain it unless you store it for years.

2003 Mitsubishi... | Answered on Feb 04, 2017 | 32 views

There is no fuel cut switch on the lancer. Need to know what you are trying to fix no fuel?

2003 Mitsubishi... | Answered on Sep 07, 2016 | 100 views

Scan Tools The Changing Field of Diagnostics Take it to a ASE certified repair shop .

2003 Mitsubishi... | Answered on May 13, 2016 | 263 views

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