check engine light on 1995 volvo 750

United States
January 9, 2007 6:37am CST
check engine light came on changed spark plugs and car ran fine for about two days then the check engine light came back on and car is running rought and loud.
1 person likes this
3 responses
@321633wy (1795)
• United States
29 May 07
My car has a same problem as the engine light show up but it works fine.I did bring it the car shop and they couldn't find any wrong...until now it's two years surprisingly it works fine .But i still don't feel good with engine light show up without knowning what's wrong with it..
• United States
10 Jun 07
The O2 sensor might be broken. Not sure how many sensors your car has but if the sensor is broken it does not effect the car performance as such, in the sense you will not feel any jerks or performance issues. But what is happening is that the exhaust system and engine is not burning fuel at optimum levels, which translates to drop in fuel economy or high fuel consumption. If you feel you are using more gas now compared to gas before the light then 02 sensor might be a problem. Either way your car will not pass state inspection with the light still one. Hope this helps. Ashutosh
• United States
30 May 07
Check the oil. Then, check the radiator-it may be low on fluid. It is amazing how much noisier the engine gets when the fluids are low. You might want to watch the fluid levels closely-there may be a leak in the radiator or a hose. Best of luck.
@ashu2077 (88)
• United States
29 May 07
Hi, I am no expert but if you car is jerking at certain speed it could that the fuel injector(s) is/are bad. Take the car to autozone and get the code and do some research. Regards Ash