1990 Toyota Cressida Supra Fix Head Gasket
According to Supras.org, a head gasket can fail due to constant engine overheating or from improper installation. When it does, the combustion gases can leak into the cooling system and/or the...
View Article1991 Chevrolet Suburban Replace EGR Valve
The exhaust gas recirculation valve, or EGR valve, recirculates the exhaust gases back into the cylinders for more efficient burning and to lower engine operating temperatures. While some EGR valves...
View Article1991 Buick Regal Replace Oxygen Sensor
A 1991 Buick Regal’s sensors and controls work very closely with the engine, transmission and other systems to maintain fuel efficiency and the lowest possible pollutant levels. The oxygen sensors in...
View Article1991 Ford Ranger 2.3L Remove Exhaust Manifold
Although not a common failure, emission gas leaks may develop through a ruptured exhaust manifold gasket or cracked exhaust manifold. The exhaust manifold is relatively accessible in your 1991 Ford...
View Article1991 Pontiac Grand Am Remove Oxygen Sensor
A 1991 Pontiac Grand Am has three oxygen sensors. The primary sensors are located in the exhaust manifolds, one on each side of the engine. The secondary oxygen sensor is located in the exhaust pipe...
View Article1986 Mazda RX 7 Troubleshoot the Fuel Injection System
The fuel injector on a 1986 Mazda RX 7 is a mechanical or electro-mechanical device that meters fuel into the car’s engine. The RX 7’s fuel injection system has three sub-systems: electronic control,...
View Article1987 Ford Ranger 2.9L Troubleshoot EGR Valve
The exhaust gas recirculation, or EGR, valve in your 1987 Ford Ranger 2.9L engine allows small amounts of exhaust gases into the intake manifold. These gases mix with the air and fuel inside the...
View Article1988 Ford Mustang Replace PCV Valve
The PCV valve on the 1988 Ford Mustang engines is responsible for recycling unburned gas from the crankcase back to the combustion chamber. PVC is defined as positive crankcase ventilation. The PVC...
View Article1988 Jeep Comanche Replace Exhaust Manifold Gasket
As the engine in your Jeep Comanche runs, hot exhaust gases are expelled from the combustion chamber into the exhaust manifold. The gases are kept in check by a series of exhaust gaskets, most notably...
View Article1990 Nissan Sentra Clean EGR Valve
The 1990 Sentra is a compact car designed and manufactured by Nissan Motors. The Sentra is equipped with an exhaust gas recirculation valve. The EGR valve is responsible for directing hot exhaust...
View Article
