Question about Ford Escort

1 Answer

Can I read the computer on my car with out the check engine light

The check engine light came on in my truck and then went back off a few moments later, I called the auto parts store and they said they can't read it unless that light is on. Is that true because I have heard it doesn't matter if the light is on or not if it has come on in the past you can read the computer. what should i do

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.


    An expert whose answer got voted for 20 times.

  • Expert
  • 52 Answers

Hey snackdaddy20,

Yes it is true, those parts stores only see active codes because their scan tools are very basic. Now a dealership scan tool can read historic codes as well as active codes.

If it went off i really wouldnt worry about it, but if your really dedicated on wonder what it is then i would take it to your local dealership.

Posted on May 16, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Hi, I have a Pontiac Montana 2003 for a year and is running well, it has 148000 km. Today I went from Toronto to Niagara Falls and park my car for a couple of hours and when I turned on the engine the...

replaced the oil and re set computer to fresh oil change
thes older models will only go aproxamitly 5000k on oil change
it may not have been reset at last oil change
key on run motor off depressed gas pedal to floor 3 times within 5 seconds of key on run
then start motor to re set oil life system

Apr 09, 2011 | 2003 Pontiac Montana

1 Answer

My toyota engine light went on. The code reads P0125. I have changed 2 sensers already and light is still on.

That code in any toyota don't require sensor replacement, what it is is that the thermostat is not close complete or there is a small leak somewhere in your coolant system, the computer is spectating 180 or so from the moment that yo start the car to the moment that computer knows that that temp has to be reached if that don't happen because the car is loosing its temp due to a leak or a open thermostat , the computer sets p0125 unable to reach temp for close loop.

If you need further help, I’m available over the phone at

Dec 24, 2010 | Toyota ECHO Cars & Trucks

1 Answer

When the air conditioner is turned on, especially on high, the engine chugs. The check engine light is on, and my brother in law went through the engine several times to see what the problem is, and fixed...

OBDII engine diagnostics started in 1996. Since then, no mechanic worth his salt would ever start a diagnosis without reading the trouble codes stored in the computer. That's ALWAYS the starting point. Get the codes read and post them. Guessing without the code is futile.

Nov 23, 2017 | Dodge Stratus Cars & Trucks

1 Answer

Check engine light , trouble code 34

Your truck is OBD2 compliant take it to a local auto parts store and have them read the code for you they usually do this as a free service, if it doesn't have a obd2 port then your truck is not a 1996 vehicle.

Apr 04, 2010 | 1996 Dodge Ram 1500 Club Cab

2 Answers

2001 Hyundai Santa Fe check engine light and transmision troubles

your guess is as good as anyones. Someone will have to look at this in person.

Nov 18, 2009 | 2001 Hyundai Santa Fe

1 Answer

Just bought a 2006 corolla went on a 300 mile trip and now check engine light is on ,so I unhooked the battery for a few minutes now it is gone!!

if it comes back on its recommended that you get the fault codes read in the computer as theres probably a sensor playing up,rarely fix themselves or come good

Oct 18, 2009 | 2006 Toyota Corolla

1 Answer

Car sputtering and check engine light came on after

Most auto parts stores Advance/ Autozone etc will get the diagnostics codes from cars computer and tell you why the light is on and what the problem is if there is a problem.

Good source for Kia its free to register NO STRINGS

Apr 26, 2009 | 2004 Kia Optima

1 Answer

Renault espace race 2.2cdi year 01

sounds lke the egr valve. may not happen again but probably better to get a diagnostic check done anyway.

Aug 10, 2008 | 2001 Renault Sportwagon

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

Related Topics:

114 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

80531 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

5687 Answers

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

Answer questions

Manuals & User Guides