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Dave Nova
Dave Nova, Cadillac Technician
Category: Cadillac
Satisfied Customers: 1522
Experience:  ASE Master Certification. GM World Class Certification
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My 2003 Cadillac cts 3.2 litre will start run for 2 seconds

Customer Question

my 2003 Cadillac cts 3.2 litre will start run for 2 seconds and then quit. I replaced fuel pump and filter. I have good fuel flowing with filter off. but no fuel when I depress stem on fuel pressure test port I cant see rear of motor to trace fuel lines.i wonder if some type of sensor is failing.please advise..
JA: Are you certain it's the fuel pressure sensor that's in need of attention? What about the fuel rail? Have you checked it yet?
Customer: fuel rail seems to be buried behind motor where I cant get to it. is that where it is?
JA: Are you fixing your CTS yourself? What have you tried so far?
Customer: new aftermarket fuel pump installed through access hole I cut under back seat pump spins as I have even put direct power to it. I also changed filter on frame
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 10 months ago.
Category: Cadillac
Expert:  tim's auto repair replied 10 months ago.

Hi, My name is ***** ***** for the delay.
I will do my best to assist you.

Expert:  tim's auto repair replied 10 months ago.

does the security light stay on?

Customer: replied 10 months ago.
what does it look like
Expert:  tim's auto repair replied 10 months ago.

on the dash..with the key on,,what lights come on?

Customer: replied 10 months ago.
security light flashes with no key in ignition
Expert:  tim's auto repair replied 10 months ago.

does it stay on with the key on?

Expert:  tim's auto repair replied 10 months ago.

does the security light stay on?

Customer: replied 10 months ago.
IT GOES out after key is on after a few seconds
Expert:  tim's auto repair replied 10 months ago.

ok..will it start every time you try to start it for a couple of seconds?

Customer: replied 10 months ago.
IT WILL RUN FOR TWO SECONds or so
Expert:  tim's auto repair replied 10 months ago.

ok..how and when did this problem first begin?

Expert:  tim's auto repair replied 10 months ago.

are you using the original key?

Customer: replied 10 months ago.
not sure it looks original it has black plastic with Cadillac emblem and PK3+ stamped on it
Expert:  tim's auto repair replied 10 months ago.

.how and when did this problem first begin?

Customer: replied 10 months ago.
I never requested a phone call
Expert:  tim's auto repair replied 10 months ago.

.how and when did this problem first begin?

Expert:  tim's auto repair replied 10 months ago.

how and when did this problem first begin,,please explain

Customer: replied 10 months ago.
car quit running a week ago
Expert:  tim's auto repair replied 10 months ago.

ok..do you have fuel pressure now?

Customer: replied 10 months ago.
I have never got a drop of fuel out of test port I don't have a guage its getting enough fuel to run a few seconds it acts like something is shutting fuel off
Expert:  tim's auto repair replied 10 months ago.

to you get any fuel out of the test port while turning the starter?

Customer: replied 10 months ago.
not a drop

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