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2000 DeVille: my 2000 deville is overheating but the mechanic is...

My 2000 deville is overheating but the mechanic iss telling me its the fuel pump doesnt sound logical

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Your correct,the fuel pump only supplies a certain volumn of gas, at a specific pressure to the fuel rail. Then the computer decides how long to pulse the injectors open.

What happens in these cases,is the mechanic doesn't understand why you brought the vehicle to them. If they don't go on a road test with you driving,find a new shop.

That said,you may not understand what was explained to you. At least in simple terms ,the way you want it explained.

It's all about a two way working relationship,and you are the only one that can develop that.

Just because the gauge looks like it is overheating,doesn't necessary mean it is.
Always check,test and trouble shoot an issue first,before assuming anything

Posted on May 04, 2010

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Posted on Jan 02, 2017

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I have an 88 Cadillac Deville. 2 months ago I had a new fuel pump put in. It's making a whining noise and the car keeps dying and sputtering. What else could be the problem to make the pump go out?


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1985 deville


A mechanic would check the fuel pump relay to find out if the pump is running when the engine dies.

Jul 29, 2012 | Cars & Trucks

1 Answer

My '92 deville fails to start after the first 2


Next time you have the problem check the fuel pressure, bet you have none. The fuel pump is electric and located in the fuel tank. These fuel pumps last on average about 100,000 miles, less if you run the tank lower than 1/8 due to the overheating it causes the fuel pump due to the loss of lubrication and cooling from the fuel it sits in.

Jun 15, 2017 | 1992 Cadillac DeVille

1 Answer

Overheating its a 2000 caddy deville


Hello flood_tim and thank you for asking your question, on Fixya.

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 2000 Cadillac DeVille, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people like you. So here is the link to:
How to diagnose an overheating Cadillac engine

Anyways if that helps you any little bit, then feel free to follow me on Twitter. That one is at: twitter.com/acoates23234

Thanks for the vote, and good luck!

Jul 06, 2010 | 2000 Cadillac DeVille

1 Answer

My 2000 deville hesitates when gets to 20 mph and says service fuel system


that's telling you that the computer is having to command extra fuel above and beyond what is programmed

most of the time its a sign that you need to replace the fuel filter

other times its the fuel pump that is failing

bottom line...get to a technician with a scan tool because if you are running lean you can cause some serious engine concerns!!!

Jan 31, 2010 | 2000 Cadillac DeVille

1 Answer

1998 DeVille Hard to cold start,runs rough


Had another mechanic look at it ,As of now we are told there is a fuel rail leaking,I assume this runs fuel to the Injectors. Heres hoping this will take care of it.mm.

Jan 12, 2010 | 1998 Cadillac DeVille

1 Answer

OVERHEATING


depends on why it overheats... if it's just a thermostat or rad it could be a good buy... without knowing the condition of the rest of the vehicle, milage etc it's hard to be sure.

have a trusted mechanic (not associated with the buyer) have a look at it and give you an assessment.

Robert

Sep 14, 2008 | 2000 Cadillac DeVille

3 Answers

99 cadillac deville


hello i have a 1998 cadillac deville course. an i been having the same over heating problems with mine i been taking it to mechanics an no one seems to know even the caddy dealship its overheating i checked the termostat water pump radiator all hoses was wondring could you tell me what you did or what you are doing to fix your problems my email is teree1234@yahoo.com thank you very much

Aug 02, 2008 | 1999 Cadillac DeVille

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