Question about GMC Envoy

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It displays low fuel level light after i fill it up. it takes days to climb back up but i never know for sure how much gas is in it

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To be sure that the sending unit is bad,you need to locate the fuel pump connector and make some tests,first find a wiring diagram and see if the sending unit sends ground to the gage,idientified the cable and put ground or power depending what it works whit and see if the gage moves correctly if it does change the sending unit.If you had tell me what car are you talking where more helpfull for me to give you more accurate information.

Posted on Nov 12, 2010


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Posted on Jan 02, 2017


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Hi it sounds like you have picked up some dirty fuel,
what you need to do now is go to your nearest garage or car spares shop and buy some decent fuel line cleaner, Red X is a good brand to buy, make sure you buy correct type for your engine ie petrol or diesel the follow instructions on the back of the bottle

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the fuel line cleaner will clean the whole fuel line and all the injectors it will make your car run perfect and it increases mpg, its a good idea to use this product every couple of months on vehicles of your age as it keeps them running properly and cuts down and buying spare parts such as injectors due to them being blocked.

have a go with the product and if you have any problems after just give me a shout back ok.

plz dont forget to rate as i have a long list of posts that people have not rated and its filling up my page,

let me know if you need further assistance

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