Q: Car starts fine, runs briefly, sputters and shuts off - 1994 Cadillac Fleetwood

asked by on

The car has gone around 170,000 miles. I have no problems starting the car. It is idling well too. However, when I'm driving and begin to accelerate to develop high speed, there would be some sputtering and complete shutoff. This happened to me the other day and I started the car back up immediately. The dashboard was showing the check engine light on. Now, when I start the car, it would shut off very shortly after. It would begin to sputter and few minutes later the dash lights would come on and the car turns off completely. I went to a few shops. I was tod this might be caused by a bad optispark distributor. Also, some bad fuel might cause this problem as well. I use Shell 93 octane. I was wondering if this could have something to do with a fuel pump maybe. Do you have any idea?

Hi! Yes, I have a couple thoughts for you to hopefully get your Cadillac back to being a reliable driver. From what you’ve said so far, I agree that the distributor and the fuel pump are high probability suspects. Now its time to have some diagnostic testing performed!

Both the fuel pump and distributor can be tested to determine if they are failing. A fuel pump test uses a pressure gauge to verify its ability to deliver correct pressure under various conditions. A distributor test will verify its ability to reliably switch the ignition coil on and off consistently , hot or cold. Additionally, the Check Engine Light is indicating that your vehicle’s own engine control module (ECM) is recognizing a problem and has some information to provide to a technician using a scan tool that will aid in the diagnostic process. It’s now time to have an experienced technician, such as one from YourMechanic, run some tests to diagnose the sputtering issue instead of saying, "maybe this, or maybe that". One or two good test results is worth twenty guesses, and prevents you from replacing expensive components that are not the cause.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car starts fine, runs briefly, sputters and shuts off - 1994 Cadillac Fleetwood

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: What if I dont have power to the acc relay how do I fix it do

Hi there. It really depends as to what is causing the accessory relay to not receive power as to what is the best solution. If the relay is not properly grounded, the repair is to resolve the ground issue. If...

Q: Car sputtering and misfiring.

I would ask for help from a mechanic to diagnose the codes that you have so the necessary repairs can be made.

Q: My car starts making a loud ticking noise then shuts off when ever I'm stopped unless I continue to hold down the gas, white smoke

Hi there. One of the common symptoms of coolant that has found its way into parts of the engine it does not belong is white smoking coming from the exhaust pipe. This can be caused by a head gasket that...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...