Tag Archives: Engine

Questions and answers to all common engine problems. Auto repair help and advice from expert mechanics. Fix it yourself and save money.


Engine Has No Oil Pressure To Lifters Or Rocker Arms

I am having problems with a 2009 Chevy GMC 8.1 engine. The rocker system is not oiling. What causes this and how can I fix it? Do you have an oil pressure gauge on the dash? Yes we hooked 1 up 50 pound of pressure idling. 50 PSI at idle is quite high on this motor hot. Are you hearing top engine ticking? Have you…

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2001 GMC Safari Coolant Leak and Rough Idle

Hello. My son has a 2001 GMC Safari with a 4.3 engine. He complained of a “rough idle” along with a coolant leak. Not knowing what the rough idle might be, I suggested he bring a new set of spark plugs. I listened to the engine then looked and found a bad left side motor mount, which I replaced along with the spark plugs. I…

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3.1L and 3.4L Engine Push Rod Locations

I dropped the box with the push rods. Now they are mixed. I know that they are different lengths. What is the order? Attached is a picture of the front cylinder head (2,4,6). Thanks for your time. 3400 pushrod locations 3100 pushrod locations


2000 Dodge Stratus Jolting At Low Speeds

Hello! I own a 2000 Dodge Stratus. Last week I noticed that when I accelerated and decelerated at low speeds my car would ”jolt”. The feeling reminds me of when my old car would stall and my boyfriend describes the feeling as if it is slipping a gear. It only ”jolts” at low speeds (normally around 20 mph) for the first few minutes of the…

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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 the EVAP system, which controls vehicle emissions. The P0440 is…

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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 the shop with a check engine light on, it will…

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Chevrolet Tahoe Engine Knock And Transmission Problem

Question: I have a 1997 Chevy Tahoe that was running great. Changed oil, now engine is knocking. Any ideas. When I changed it there was alot more oil in it than should be. Don’t know how that happened. ProTech: Too much engine oil in the crankcase can cause engine damage, but will usually muffle the noise in it until it is drained and then filled…

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Where Is The Oil Pressure Switch On Pontiac Grand AM

1997 Pontiac Grand Am V6 – where is the oil pressure switch and do we need to drain the oil first to replace it? ProTech: The oil pressure switch is located in the engine block, above and little to the right of the oil filter. Basically right above the starter motor. You do not need to drain the oil to replace it, although you may…

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Burning Coolant Smell On 2001 Ford F-150 After Repairs

Had a coolant leak, got it fixed by a mechanic almost a week ago . I still get steam, and odor. I took it back they checked the pressure again and it checked okay. Is it normal for this to happen this long after. The mechanic said the leak was pretty bad, and there may be coolant in the insulation for the converter, and it…

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1996 Pontiac Firebird Engine Code P0151 Oxygen Sensor

The engine light came on in my 1996 Pontiac Firebird with a 3.8 engine. The code is P0151. Is this an oxygen sensor. If so which one and how do I change it? ProTech: Yes that is a code for an oxygen sensor that has low voltage. You probably need to replace it and you’ll be fine. The code is for Bank 2 Sensor 1,…

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Hyundai Elantra Overheats and Stopped Running

Question: I have a Hyundai Elantra which stopped running. When I had it towed to the Hyundai dealer, they told me that the head gasket was blown. They indicated that the upper and lower radiator hoses had been reversed at the thermostat housing causing air to be trapped at the front of the housing and the coolant temperature sensor does not read trapped air, causing…

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1999 Chevrolet Monte Carlo Overheats

My 1999 Chevrolet Monte Carlo has been leaking coolant and on way home got hot and lost power and spits and sputters at 2k RPM. hat would the problem be? ProTech: Well you would have to find the cause of the leak. You obviously lost too much coolant to cause the engine to overheat and could have resulted in more damage. I’ve replaced the water…

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2000 Oldsmobile Alero Won’t Go When Hitting The Gas

I changed the mass airflow sensor and o2 sensor in my 2000 Oldsmobile Alero but when I crank it up it runs till I push the gas. What is the problem? Would you know? Mechanic JK: Hi Jerry. Can you clarify your problem. What do you mean when you say it runs till you push the gas? You can crank it up but when you…

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How To Install Buick Century Power Steering Pump

I have a 2004 Buick Century and I need to see a picture of how the power steering sits. My nephew tore apart the engine. I know how to replace it but the issue is that I don’t know what bolts go where or if the unit is set right. Mechanic JK: What engine size in your Buick? I believe 3100. OK. I am an not allowed to…

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