How to Clean 2001 Pontiac Bonneville Fuel Injectors


Disconnect the negative battery cable. This is a safety precaution.


Switch off the fuel pump. Take your wrench and disconnect the fuel line from the fuel rail (over the engine). Plug it.


Connect the tube of your fuel injector cleaning kit to the fuel rail.


Start the engine. Let the solvent from the fuel injector cleaning kit run through the engine. This will take a few minutes. When it runs out, the engine will shut off.


Switch the fuel pump back on and reconnect the fuel line. Tighten it down with your wrench; a leaking fuel line can be very dangerous.


Start the engine again. Listen for any irregularities. If it still sounds like there is a problem, repeat the process or take your car to a mechanic.

Tips and Warnings

  • Cleaning your own fuel injectors is unsafe and often ineffective. It is best to take it to an auto repair shop where they have specialized equipment.
  • In the early 1980s, almost all automotive manufacturers did away with carburetors and replaced them with fuel injection technology. The purpose of both the carburetor and fuel injector is to adequately mix fuel and air in such a way that optimum combustion can occur. Though fuel injectors offer higher performance than carburetors, they can get congested and dirty. If your 2001 Bonneville is experiencing a significant drop in power and performance--or if it is misfiring--a filthy fuel injector may be to blame.