Question about 1990 Cadillac SeVille

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Change fuel pump in 1990 cat seville - 1990 Cadillac SeVille

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Remove fuel tank from vehicle
Than remove sending unit and pump
Been in gas tanks for 30 years

Posted on May 03, 2010

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Posted on Jan 02, 2017

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SOURCE: how to change fuel pump 1990 cadillac seville

The fuel pump and sending unit is located in the tank. I hope your tank is empty, if not you will need to siphon it out. It is dangerous with the gasoline, and remember the fumes burn, not gas. You start by removing the filler hose, then loosen straps, detach sending unit wire and fuel line, then lower tank. Then unscrew the sending unit/pump and replace. reinstall.

Posted on Jul 05, 2009

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SOURCE: where is the fuel pump on a 1990 cadillac seville,

the most sensible way is to spend 20 bucks and get a repair manual on a CD over on ebay. that will have all the steps and pictures to show you the way. and you can do a search on youtube, there are most likely a few videos of folks doing this. Do not be surprised to find that it is in the gas tank which must be dropped out of the car.

Posted on Nov 24, 2010

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Do the 92 and 94 cadillac Seville use the same fuel pump?


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I'm Ben and -- hopefully -- I can provide some meaningful assistance.
Sorry but the answer is no.

1991/1992 Part #REPB314517 Fits the following 1990-1992 Cadillac Seville submodels:

1991-1992: Base; 8 Cyl 4.9L; "FI, Naturally Aspirated, VIN B"
1991-1992: STS; 8 Cyl 4.9L; "FI, Naturally Aspirated, VIN B"

1994/1996 Part #E3913M Fits the following 1994-1996 Cadillac Seville submodels:

1994-1996: SLS; 8 Cyl 4.6L; "FI, Naturally Aspirated, VIN Y"
1994-1996: STS; 8 Cyl 4.6L; "FI, Naturally Aspirated, VIN 9

Jun 03, 2012 | Cars & Trucks

1 Answer

Where is the fuel pump on a 1990 cadillac seville, and how do i change it myself.


the most sensible way is to spend 20 bucks and get a repair manual on a CD over on ebay. that will have all the steps and pictures to show you the way. and you can do a search on youtube, there are most likely a few videos of folks doing this. Do not be surprised to find that it is in the gas tank which must be dropped out of the car.

Nov 24, 2010 | 1990 Cadillac SeVille

1 Answer

1990 seville-where is fuel pump fuse & relay located - what colors are fuel pump wires at tank connector - trying to check for power


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1 Answer

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Dec 15, 2009 | 1990 Cadillac SeVille

2 Answers

How to change fuel pump 1990 cadillac seville


The fuel pump and sending unit is located in the tank. I hope your tank is empty, if not you will need to siphon it out. It is dangerous with the gasoline, and remember the fumes burn, not gas. You start by removing the filler hose, then loosen straps, detach sending unit wire and fuel line, then lower tank. Then unscrew the sending unit/pump and replace. reinstall.

Jul 05, 2009 | 1990 Cadillac SeVille

1 Answer

My 1990 cadillac seville is running rough changed spark plugs cap and rotor i changed the cat still run rough dont wanna spend more money if i step lightly on the gas its goes the more i step on it it gets...


I have had this problem. if the spluttering start at a certain point on the fuel gauge. and when you fill it up it goes ok. then the fuel pump in the tank is breaking down. because when it gets to a level the pump has to work harder to pull up the fuel. however if it happens at any level of petrol that can be muck in the tank. or muck in the filler cap key hole. some cars breath through there. clean it in boiling water. now for muck in fuel try AMITECH products sludge remover. $8 or so. first . or you could try taking the pipe of the carbaretter and blowing air back into the tank. blasting away muck from pump it will not hurt it. might go for a while. failing that drain the tank and clean out with sludge remover. the other thing it could be is a slight hole in the tank. probably not. or a relay that gets hot.test relays do air thing try sludge remover and boil petrol cap before spending any money. use the air line that fills the tyres but take off pettrol cap first. just a little blast will do. few things to try there. hope it helps or you have to drop the tank clean it and change fuel pump. and thats expensive. liz

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1 Answer

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1 Answer

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