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> Fule Injection~, injector cleaner?
tobias
post Jan 3 2014, 03:50 PM
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Anyone know of the best injector cleaner to use on the fuel injection system of a Volvo 780?
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TheGreekMason
post Jan 4 2014, 12:10 PM
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most gasoline available have a cleanser incorporated into the formula. if i may ask, what makes you think that your injectors are clogged? there are companies that will clean out your injectors, but they aren't cheap. if you want to use any of the cleaners that are available, i would stick with the known name brands. gumout, stp, etc. you can always go to a wrecking yard and find a derelict 780 and get those injectors and see if it helps out. a good place is vandsautodismantlers.com that is just my opinion, i have used them countless times, and their items are handled with care. good luck and keep us posted.
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tobias
post Jan 7 2014, 06:10 PM
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First of all thank you GreekMason. I don't think they are necessarily clogged but my gas mileage has gone down significantly and it seems to be running rougher than usual. So I figured running some injector cleaner through it might help.
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TheGreekMason
post Jan 7 2014, 07:31 PM
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have you tried to see if any codes pop up? tune up recently? did it just pop up all of a sudden or was it a gradual decline in engine performance? wow, i impressed myself with those big words. hahahhahaha
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danielm85948
post Jan 7 2014, 07:46 PM
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QUOTE (tobias @ Jan 7 2014, 07:10 PM)
First of all thank you GreekMason. I don't think they are necessarily clogged but my gas mileage has gone down significantly and it seems to be running rougher than usual. So I figured running some injector cleaner through it might help.

change your air filter it may be dirty.
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grendel1960
post Jan 8 2014, 07:35 AM
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I also got a boost in fuel economy when I put a new thermostat in, while the old one was still working it was opening at a low temperature so the engine was running colder than it should, which affected the mpg and the amount of heat the heater kicked out.
Grendel
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TheGreekMason
post Jan 8 2014, 07:47 PM
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good one grendel, didn't think of that. and +1 to daniel. these are all easily checked by a novice mechanic with the most basic of skills.
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