Q: security system is disabling fuel, runs rough, sputters, kills, and hard to start.

asked by on January 30, 2017

When I turn the key on the security system relay clicks and fights with the fuel management relay for a long while. once they stop clicking, normally i can crank it over and it will start right up. But if I try to spin it over while it is still clicking it wont fire at all. Once it starts, it normally with run and drive for about a week, then every time I try to start it , it gets worse and harder to start. Also, the distance I can drive gets shorter and shorter as I use it through the week because it starts to sputter, spit, cough, and run rough as i'm driving, eventually killing. then after it does that, it is almost impossible to get started right that moment, you have to wait at least 20-30 mins sometimes before you can get it to get the relays to click again. once they stop, it will start again, but really poorly, running rougher than ever, just to limp it home. I've tried grounding the security system door wire to no avail. can i just disable the whole alarm? thoughts?
My car has an automatic transmission.

Car is not starting Inspection $79.99 - $89.99 Get a Quote

Hi there. If your vehicle has a aftermarket car alarm, you can always remove it from the vehicle. If the alarm is factory, then you will not be able to remove it, but you can repair it. It seems as if the immobilizer is malfunctioning and needs replaced. If you need further assistance with your car not starting, then seek out a professional, such as one from Your Mechanic, to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

2001 Saturn L300 turns over won't start it just stalled out and won't start

Hello, thank you for writing in. When it comes to a stalling issues, you want to turn your attention to the spark and power supply first. It is good you have partially ruled out the fuel supply as the problem....

After adding oil, car started jerking

I would do an oil and filter change and get that squared away. If the problem persists, it is definitely unrelated. Once in a pinch I had accidentally topped off 5w30 with 10w30 and did not have any problems. But...

Not getting fuel from fuel tank replaced fuel pump and filter I have a 85 720 nissan pick up

Hi there. I would recommend checking the fuel pump fuses to be sure the fuel pump is getting power to it. Also, check the ground wire to the fuel pump as well as this is a common issue when they...

my car will crank but will not start 1998 honda accord

The first thing to do is to check to see if you are getting spark to the spark plugs? If not the most common cause of the no spark is the crank sensor built into the distributor. I recommend checking...

Car cut off and ran out of gas - I put gas in it but the car still won't turn over

Running out of gas can damage the fuel pump. Gasoline acts to lubricate and cool the fuel pump as it runs. Running it dry can overheat and damage the pump. Have a certified technician check and/or replace the fuel pump...

My car was starting hard, I had to pump the gas. Now it won't start at all

The computer should be scanned for codes and the fuel pressure checked. The problem sounds like the fuel pump in the tank stopped pumping and may need to be replaced. Have a mechanic like one from YourMechanic come and diagnose...

My 2002 Saturn Vue's rpms started revving into 4-5k when up shifting. Later that day the clutch went out. Now the starter is out.

Hello, thank you for writing in. The decision to invest in an older car is difficult, even more so when you do not have the car in front of you. A failed clutch can interfere with the flywheel causing the...

car trun dose not crank feel like it trying to frire but it dose not my rotar truns i check sark on 4 plugs getting gas

Hello, thank you for writing in. The testing you have done so far is great. If you know you have fuel pressure and spark then you can turn your attention to other possibilities. These include the air intake sensors like...

Car starts fine, sputters even when giving it gas, shakes and dies, sometimes there's a clanging in the engine

Hi there. Sounds like the engine is not getting enough fuel as if the fuel pump is not working. The engine will start normally and then die off when you give it gas. Check the fuel pressure when the engine...

Related articles

How to Keep Your Car From Stalling
When When driving a car, we expect it to get us from point A to point B without any issues. It can become unnerving to drive if your car stalls randomly when coming to a stop, whether it is at...
How Long Does a Throttle/Accelerator Pedal Position Sensor Last?
The The throttle/accelerator pedal position sensor detects the position of the accelerator pedal. This information is then transmitted to the vehicle’s computer - the engine control module (ECM). From there, the data is then sent from the computer to the...
The Best Used Cars to Buy for Dog Owners
Dog Dog owners are a special breed of drivers. When they shop for a used car they have a list of requirements that can be quite different from other drivers, which tends to make the process a bit of a...