What is the best fuel system cleaner to use on my 1998 z24 cavy with 140,000 miles and never has had it added before?
i dotn like sea foam...just go to autozone or some place and get fuel system cleaner
Ok I'm going to help you out here
The best EFI cleaner you can buy is either Chevron Techron or Valvoline Synthetic Fuel System Cleaner. Both work exceptionally, even on high mileage cars. The Techron is $5.99 per bottle and the Valvoline is $8.99 per bottle, as per Autozone, where I work.
Someone mentioned Seafoam - also good stuff. You can add it to gas, oil, intake, almost anything - but for a periodic cleaning of the entire fuel system, I recommend one of the two that I mentioned above.
On a car with as many miles as yours, you may want to also clean out the Throttle Body and Intake Manifold. Pick up some
STP Throttle Body and Air Intake Cleaner or some
Seafoam Deep Creep Spray, both will do the job.
What you want to do is pull off the air intake tube while the engine is off and cooled down, and spray the inside of the throttle body with the cleaner. Have someone manipulate the gas pedal from inside the car, so you can clean the throttle plate as well as the back part of the TB. Then Re-attach the air tube and start the car. It may stumble or stall, but thats normal. You should also get some white or black smoke coming out the exhaust. From there you can clean the engine while its running - detach a vacuum line or the PCV hose (brake booster line works well) and spray it into the hose with the engine idleing. If it stalls, restart and try again. You want to use about 1/2 to 3/4 of the can, that will ensure it gets cleaned out pretty well.
Hope that helps.
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thanks so much, ill try this and hopefully i can breathe new life into this GIRL ABUSED CAR lol
wesmanw02 wrote:Ok I'm going to help you out here
The best EFI cleaner you can buy is either Chevron Techron or Valvoline Synthetic Fuel System Cleaner. Both work exceptionally, even on high mileage cars. The Techron is $5.99 per bottle and the Valvoline is $8.99 per bottle, as per Autozone, where I work.
Someone mentioned Seafoam - also good stuff. You can add it to gas, oil, intake, almost anything - but for a periodic cleaning of the entire fuel system, I recommend one of the two that I mentioned above.
On a car with as many miles as yours, you may want to also clean out the Throttle Body and Intake Manifold. Pick up some STP Throttle Body and Air Intake Cleaner or some Seafoam Deep Creep Spray, both will do the job.
What you want to do is pull off the air intake tube while the engine is off and cooled down, and spray the inside of the throttle body with the cleaner. Have someone manipulate the gas pedal from inside the car, so you can clean the throttle plate as well as the back part of the TB. Then Re-attach the air tube and start the car. It may stumble or stall, but thats normal. You should also get some white or black smoke coming out the exhaust. From there you can clean the engine while its running - detach a vacuum line or the PCV hose (brake booster line works well) and spray it into the hose with the engine idleing. If it stalls, restart and try again. You want to use about 1/2 to 3/4 of the can, that will ensure it gets cleaned out pretty well.
Hope that helps.
I will second this
I have used the CHeveron Techron for years in my vehicles at every oil-Change!!
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Bill Ellis
2002 Cavalier 2.2L OHV Sedan (AUG 2001)
2004 Vibe AWD Shadow (May 2004)
^^^^^ I will third this. I'm a big fan of Techron- to the point that I only use Chevron gas, because it runs it through every tank. I had a Lumina a few years back that kept getting clogged injectors, the dealership told me all they did was run Techron through them to clean em out and it ran like a champ. Started running Chevron gas, it never happened again.
I may not be the sharpest crayon in the box, but at least I'm a pretty color
