QuestionQUESTION: when slowing to stop or just at idel will just shut down like turning engine off. pco codes are 141,154,155,175,603,716,717, pci 1520, pc 1599, ip 2710, rf 2560. cadillic deville 32v northstar 4.6l dohc v8.
some time it will exess crand befor starting.
ANSWER: What YEAR ?.
First CLEAR (erase) ALL the codes from the computer and see which ones come back as CURRENT or HISTORY as displayed as each code displays.
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QUESTION: 1996 cadillac deville. 32v northstar 4.61dolic v8
what is the process in clearing codes?
also i have replaced the fuel pump and fuel filter in the last six mo. also some times will grind excess befor starting then some times will start right up. it idels very smooth. no signe when is shuts down it just stops
this could be very dangerous.......thanks Jerry
ANSWER: Look thru my past answers to others and you will find out how to clear the codes.
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QUESTION: CLEARED ALL CODES AND HAVE TWO REMAINING CODES (IP2710 HISTORY) AND (RF 2560 HISTORY) thanks for your help jerry
AnswerOk lets clear the IP2710 and RF2560.
1. Re-enter diagnostics and when you see PCM?
2. Push and release the LO button and you will see IPC?
3. Push and release the HI button and you will see IPC CODES?
4. Push and release the LO button and you will see IPC DATA?
5. Keep pushing and releasing the LO button until you see IPC CLEAR CODES?
6. Push and release the HI button and you will see IPC CODES CLEAR.
7. Press and release the OFF button until you see PCM?
8. Keep pushing and releasing the LO button until you see RFA?
9. Push and release the Hi button and you will see RFA CODES?
10. Push and release the LO button and you will see RFA DATA?
11. Keep pushing and releasing the LO button until you see RFA CLEAR CODES?
12. Push and release the HI button and you will see RFA CODES CLEAR.
13. Press and release the AUTO button and turn OFF the ignition key.
Recheck for any codes and if the codes are CURRENT or HISTORY.
Fuel pump test:
1. Get yourself a helper.
2. remove the gas cap.
3. have one person listen in the gas tank at the gas cap opening.
4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.
5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.
6. Does it ?.
If you do NOT hear it run, in most cases the fault is the fuel pump relay or the fuel pump..
The stalling is most likely caused by a blackish residue on both sides of the throttle plate and the surrounding areas. Clean it all off and see if this solves your problem.
