The pump is used to inject fresh air in to the exhaust system at the catalytic converter. The goal is for the oxygen to react with the catalyst and heat to burn up any unburnt hydrocarbons left over from the combustion process. The catalyst in your 1985 Suburban probably quit working about 15 years ago. Unless you replace the converter the pump is having zero effect upon your vehicles emissions. Considering your speaking of a 454 cubic inch engine removing the pump will also have little effect upon your engine either. It takes less than 0.125 horse power to turn it. My suggestion is remove the 454 infact in this day and age I suggest removing the Suburban if at all possible The savings in fuel cost could net you a new car payment.
it has a pre cat and a regular cat
Look under the vehicle and count them.
Look under your vehicle and count them.
Walk outside, bend over, look on the vehicle and count them.
Yes it will. Your engine will not run properly and you will get poor mileage and loss of power. And besides that is it a federal crime to remove the catalytic converter from any vehicle.
Assuming this vehicle has duel exhaust with duel catalytic converters, bank 2 sensor 2 would be the O2 sensor after the passenger side catalytic converter.
by wackin it ;)
They are in the exhaust system/pipe. Just start at the engine and follow the exhaust back to the muffler and you will see them. They are about 3 inches long with a electric wire hooked to them. They just screew out. I believe ther is 3 of them but there might be 4. just look at the exhaust pipe real good. On the 8.1 engine, two are located ahead of the catalytic converters in the exhaust headers and two in the tail pipes after the catalytic converters.
There are many different kinds of suburban radio problems. These problems include but are not limited to shorting of the signal.
Yes it does. unless someone took it off.
There are four, two on each side before and after the catalytic converters. They screw in and plug into the electric system. Ideally, you can get the auto parts store to read the code in your truck and tell you which one is bad, but I've never gotten this to work on the first try.
One of the sensors is tripping the engine light. Codes need to be retrieved. Problems could be O2 sensor and or Catalytic Converter.
If someone has not removed it, Then yes it is before the muffler.
"The development of transportation systems increased the suburban growth around cities.""Suburban commuters often face traffic problems during rush hour."It was a charming suburban town.
Fuel delivery problems such as fuel pump failure, fuel pressure regulator failure or plugged fuel filter. Another possibility could be a damaged catalytic converter.
It sure did, That is the law on all makes and models.
Could be a plugged/damaged catalytic converter.
The 96s are notorious for their feeble front brakes
Probably either screws into the exhaust near the engine, or screws into the catalytic converter if it sits near the engine. HTH, Chuck
Bank 1 is the driver's side, bank 2 is the passenger side. Then you will have sensor 1 and sensor 2. Sensor 1 is before the catalytic converter (closest to the engine), and sensor 2 is after the catalytic converter. So Bank 1, Sensor 2 is: the driver's side , after the catalytic converter.
A plugged/damaged catalytic converter is one possibility.
I just had mine replaced on an 2002 suburban....didnt take long to figure out what was wrong, it started making a really loud rattle and knocking sound you can bang on the upper exhaust and hear it. there is one one each side
Yes it will go right in there, No problems.