Gas mileage for SL1
I have 2001 SL1 and I have been noticing lately since July of this year that my fuel mileage has been going down. I use to be able to get 100-110 mile to a 1/4 tank. Now I am lucky to get 50-70 miles to a 1/4 tank. I have replace the following parts:
Spark plugs Fuel Filter Spark Plug wires The other think that I have noticed is that every once in a while the car will die shortly after I start it. It seems like the engine is being choked and i have to press on the gas to get it to start. I am working on checking the fuel pressure to see if that is the issue. If there is anyone out there that knows what i could be, please let me know. |
replace ects (coolant temp sensor) AND connector.
Source parts from GM dealer |
Try some Techron fuel injector cleaner in a tank of gas too. Have you ever cleaned the throttle body?
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Check your warm idle speed, if it is over 950 rpm, then you may have an issue with the intake manifold gasket around the #1 cylinder.
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mine was doing the same thing and i replaced the ect and it fixed it for me got it autozone for pretty cheap to.Derf has good advice take head to it.
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