Tag Archives: Emissions

Emissions system codes and check engine light repair help from expert mechanics. Read our latest answers.

Olds Aurora EVAP smoke test

I have a 2003 Oldsmobile Aurora Final 500. Replaced the manifold gasket and Catalytic Converter over the past 4 weeks, and was planning to replace a bad coil pack this week. I do not drive more than 80 – 100 miles a week, usually less. The car ran good except for a misfire that could…

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Mitsubishi Gallant Codes Po765 po760

Mitsubishi Gallant Anti-lock light was on the dash then a couple days later I was on the freeway doing 65 miles per hour my car dropped down to 40 miles per hour and the RPM’s went up high but my car would not accelerate. When I pulled over to put it in park I tried…

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Chevy Traverse Hard Starting After Refueling

HAVE A 2015 CHEVY TRAVERSE WITH A V-6 3.6 LITRE ENGINE. IT IS HARD TO CRANK AFTER REFUELING. IF YOU LEAVE IT RUNNING WHILE REFUELING, IT WILL RUN ROUGH FOR A FEW MINUTES AND THEN LEVEL OUT. BEEN TO AN AUTO SHOP WITH NO RESULTS. HELP !! Answer: I assume when you say hard cranking,…

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Dodge Engine Sputters – Failed Smog Test

Live Chat: I have a 1995 dodge Ram, v8 magnum, recently it started to sputter alot while driving, if you drive for about 15 minutes it will start dropping rpms and speed and sputter really bad, if you let it sit for about 30 minutes its fine, it has all fluids and gas….does anyone know…

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Location Of 2000 Buick Century Emission Control Valve

I cant find the  emission control, the picture is too blurry to see it. Can you help? I have a 2000 Buick century 2000. And p0440 and p0442 says i have a leak also. ProTech What emission control component are you looking for? There are many on each vehicle.The codes you have are both for…

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Vehicle Emissions System Problems And Repairs

Based on the amount of repairs we do on emission components on just about every type of vehicle, I thought I would write an article talking more about the parts and workings of the emission control systems on late model vehicles. More often than not, when we get a car or truck that comes in…

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1998 Mazda 626 Failed Smog Test With Code P0455

I am having to fix a Mazda 626 1998 EVAP gross gas leak, can you help me? ProTech: I sure can try…what seems to be the trouble? Smog failed test, a EVAP system gas leak. Things that usually cause a large EVAP leak are a loose or bad gas cap, a stuck open vent valve, a…

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1996 Chevrolet Suburban P0420 – Brakes Pulsate

My 1996 Chevy Suburban has a code Code P0420 code and bad sensors showing on code with large vacuum leak. I’ve sprayed carb cleaner all over the intake and brake booster house and all other vacuum lines and found nothing. I don’t know what else to do. ProTech: First of all the code P0420 is…

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Ford Explorer Smog Test And Engine Noises

Yes I have to go for an emissions test. What will they be looking for? What year is your vehicle? It’s a 1999 Ford Explorer. Alright, usually with vehicles 1996 and newer, the emissions facility will just plug into your vehicle’s diagnostic port and see if there are any trouble codes stored or failures present.…

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