Question about 2000 Volvo S40
Ok everyone not trying to be unappreciative of your input and ideas however only w couple of you are even looking in the right area. generaly when your check engine light comes on its telling you your car is misfiring (obviously). its basically a caution light not so much a stop pull over and run type of light. yes you can damage your cat over a prolonged amount of time with no repair. so my thoughts on this are that is has to be the ignition coils. I drive a 90 vw and a 96 monte carlo. i just recently had this issue with my monte and first thing i did was replace the coil packs (ignition coils). result...light went out and not flashing or anything and perfermance is restored, all is well and it runs great. give that a shot, im 98% sure that will take care of your problem, and in your s40 there should be 2 coil packs, typically only one is bad but im that type of guy who doesnt wanna worry about the other one at all so i just replaced them all. they're typically around $50 each. my monte was $36 for 1 and there are 3. your s40 will only have 2 and there located directly under the plastic cover on top of the motor. hope this helps, good luck and dont waste your time searching in the wrong placed, check engine lights are usually sensors of an ignition misfire so if your not sure which one then just limp the car down to autozone and have them plug it in for free.
Posted on Feb 08, 2013
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Posted on Jan 02, 2017
SOURCE: volvo s40, loosing power
if you have over 125k miles on it chances are your about time for a new catalytic convertor... can cause a rotten burnt smell... lack of power.. and even a stall... or no start
Posted on Sep 22, 2008
You have an engine misfire....unless you have expertise in this area you need to see your local shop as you will damage your catalytic converter if you continue to drive. An OBD II scan tool will id the cylinder to help but knowledge here is key!!
Posted on Nov 19, 2008
It sounds like you may have a problem feeding the fuel to your engine, I had the same problem with my 89 RS. All the 1989 model's fuel systems were recalled. I think you may need a new fuel pump. The fuel pump is located inside the gas tank in the rear of the car right under the rear axle. The fuel pump itself isn't too expensive, but with other small parts such as the electrical harness upgrade and fuel filter and the labor you should be looking somewhere in the $500 range. I hope this helps.
Posted on Jan 12, 2009
it could be a motor mount check the condition of it or it can be that something with the suspension might need attention . . those things can cause vibration at certain speeds
Posted on Jun 09, 2009
being 1996 I would had replace the vehicle with the used parts saving her 600-700 bucks especially fans and radiator. Is there a reason why she has to replace radiator and the fans, did it ran hot for while, if it did the chances are you can warp the cyclinder head and it can cause poor compression and run rough when it idling, at high speed its hard to tell. can also have clog fuel injectors, run 93 octane and add a can of fuel injector cleaners into the gas tank run it til empty, see if that help. check plugs,cap, rotor and wires.
Posted on Aug 26, 2009
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