20 Most Recent 2003 Volvo S40 Questions & Answers

a circle with an exclamation mark is usually the low tire indicator (that symbol is a tire and a tire gauge). sometimes when the temperature drops down, one of the tires will show up as low & later in the trip when the tire warms up, it will read correctly. Or, you can just have oone that is too low & need air. good luck

2003 Volvo S40 | Answered on Oct 15, 2018

Time to change the thermostat if you not already have done so. This is the cause of most overheating problems, although a good radiator flush may solve the problem also. The fan will stay running until the engine coolant reaches the proper parameters and then shut off.

2003 Volvo S40 | Answered on Jul 28, 2017

Has the blub been tested? Have you checked the headlight connector for power (12 volts) and a good ground (less than 5 Ohms) when it is turned on? Do that and get back to me

2003 Volvo S40 | Answered on Jan 27, 2017

Corrosion/broken wires in the wiring. Yellow is B+, power all the time. I would just run another wire for it. I tend to run it to a B+ in the fuse panel. But you can run it all the way to the battery if you want. There are many wires under the dash to cut into. Ignition or fuse panel are the best to use. Stay away from really small wires, they can be for computers. I just use under dash b+ wires to save some one down the road headaches.

2003 Volvo S40 | Answered on Jun 13, 2016

what year is your car and do you have engine light on what code do you show rich lean you need to do initial inspection first to be able to go in the right direction scan your onboard computer and get an idea and display your question all over again

2003 Volvo S40 | Answered on May 03, 2016

po 133 means front oxygen sensor signal is faulty, replace the front oxygen sensor that will solve your problem,you will have to reset computer monitoring system, may have to have a garage do this unless you have a scan tool, or replace sensor and drive with the check engine light on, while driving computer is always testing system, when it sees sensor working good it will shut light off. this will save you $$, but it may take a few days of driving,hope this helps.

2003 Volvo S40 | Answered on May 03, 2016

Burning oil may be the cause of the rest. Bad PCV system? Worn rings? Bad valve guide seals? Fully describe how and when it burns oil.

2003 Volvo S40 | Answered on Aug 03, 2015

could be dirty oil, worn rings, plugged PCV valve, worn valve seals, too much oil in crankcase, if its a v6 could be an internal intake leak. the miss fire is from it burning oil.

2003 Volvo S40 | Answered on Aug 03, 2015

You have a Bad Radiator, replace it and get the Transmission flushed.

2003 Volvo S40 | Answered on Jun 14, 2015

This is how to replace the key battery:

2003 Volvo S40 | Answered on Feb 01, 2015

It's best done from underneath the car. You'll need to remove the manifold heat shield first (from top and bottom) and then from underneath remove the down-pipe and cat converter. Once that is out of the way, soak the bolt threads attaching the turbo to the manifold with pbblaster or other rust loosening oil. (Repeat hourly for 3+ hours.) After several hours, use an impact wrench and appropriate sockets and extensions to remove the bolts from the manifold. On a car of that age, I would advise that it will be difficult to remove the bolts without one (or more) breaking off. An exhaust shop would be your best service for this.

2003 Volvo S40 | Answered on Jan 06, 2015

You need to get a manual for this. Plus, do you have the tools to do this job. Believe me, you will need specialty tools. I would have to write a book to get you threw it. Good luck, if your a novice. Follow the manual.....

2003 Volvo S40 | Answered on Dec 06, 2014

Obtain an OBD tester from your local Autoparts store. Run the diagnostic from the OBD port underneath the dash and see if you get any codes. Most likely you will and it will point you in the right direction. My bet is an ignition relay has died.

2003 Volvo S40 | Answered on Nov 26, 2014

check see if your getting spark first use a screw driver inside one of the plug wires if it sparks your getting spark if its not you probly have a bad coil or distributor or plug could also be a timing chain issue with them they are known for that also

2003 Volvo S40 | Answered on Nov 26, 2014

So you really have done nothing at all

You never checked for codes
You never looked at scan tool data

You threw a part at it, with no testing

You had the check light cleared & lost ALL
Data needed to diagnose the car

2003 Volvo S40 | Answered on Jul 21, 2014

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