Question about 1990 Oldsmobile Cutlass Supreme Conv

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1990 cutlass supreme 4 sedan

I have a gas leak where the fuel line connects to the fuel filter.

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Tighten the hose.

Posted on Nov 05, 2008

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Why do my 95 oldsmobile cutlass supreme dies when hit gas


Did you replace the fuel filter as well as the oil filter ?. If there is a good spark at the plugs it has to be a fuel problem . Check the fuel pressure and flow the flow is most important. if the pressure is high the regulator on the fuel rail may be stuck shut . and there will be no flow on the return line.

Aug 16, 2014 | 1995 Oldsmobile Cutlass Supreme

1 Answer

I have a 1990 Oldsmobile Cutlass Supreme and after I changed the fuel filter it still acting as if theres no pressure to the system... How do I pressurize the fuel system?


Well the fuel pump in the gas tank provides fuel pressure.
Have you checked it with a gauge at the fuel injector rail ?

May 06, 2013 | Cars & Trucks

1 Answer

1989 cutlass 3.1l no injector pulse or erratic


Add a bottle of a fuel additive called seafoam to the gas tank and drive for 5 miles.
You will notice a big improvement. Repeat as needed. Joe

4 thumbs up please. ty.

Oct 27, 2010 | 1990 Oldsmobile Cutlass Supreme Conv

1 Answer

I have a gas leak underneath my car -- under middle of car of 97 oldsmobile cutlass supreme -- what would this be?


if it is middle rear it may be from the tank or a line coming out from the fuel pump. if it further up towards the engine it is a fuel line.

Sep 22, 2010 | 1997 Oldsmobile Cutlass Supreme

1 Answer

1987 Cutlass Supreme not turning on. Think fuel system?


Fuel Filter REPLACEMENT Gasoline Engines The fuel filter is located behind the fuel inlet connection on the carburetor. On 1976–87 vehicles fuel filters incorporate a check valve and are not interchangeable with earlier years. Replace the fuel filter every 15,000 miles (24,135 km), or sooner if engine flooding is a problem. Fig. 1: Hold the large fuel inlet nut on the carburetor while using a flare wrench to loosen the line connection 86681247.jpg
  1. Using an open–end wrench (preferably a line or flare nut wrench), loosen the fuel line connection from the larger fuel filter nut. You will have to hold the other nut with a wrench to keep it from turning. Most of the time these units are quite difficult to remove. It is a good idea to apply a lot of penetrating oil to the threads and then tap the nut lightly.
  2. Once you have the fuel line disconnected from the carburetor, remove the larger nut from the carburetor with a box–end wrench or socket.
  3. Remove the filter element and spring from the carburetor.
  4. Check the element for blockage by blowing through the fuel inlet end. If the element is good, air should pass through easily.
  5. Once you have checked and/or replaced the filter, reinstall the carburetor nut and the fuel line. Be careful not to strip the threads. Fig. 2: Install the new spring and filter in the order they were removed 86681248.jpg

Jul 13, 2010 | 1987 Oldsmobile Cutlass Supreme

1 Answer

Need to change fuel filter on 1986 cutlass supreme oldsmobile where can I find it t change it?


You'll find it in the carburator. Unhook the fuel feed line from the front of the carb and undo the large nut directly where the fuel line connects to. The filter is there.Pay attention to how the filter comes out and put the new one back in the same way. Hope this helps.

Mar 22, 2010 | 1986 Oldsmobile Cutlass Supreme

2 Answers

'87 Olds Cutlass Supreme Gas Leak


possible thats its where the line hooks to the carburator or the carb itself is leaking

Feb 16, 2009 | 1987 Oldsmobile Cutlass Supreme

1 Answer

Fuel pouring out


you probably connect the pressure line to the return line did you change the pipe plesae tell me what hapen thanks pierre

Aug 16, 2008 | 1990 Oldsmobile Cutlass Supreme Conv

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