Starter, fuel pump does not work

Tiny
RP PERRY
  • MEMBER
  • 2003 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
2003 Cadillac Deville, just had torque converter, tcc solenoid replaced. Used vehile for 60 plus miles engine light came on showed code p0410, found vacuum control soleniod broken, had to order part. On the way home fueled vehicle, ran 10 miles or more engine killed. When trying to restart, starter would not work, then noticed dash cluster showed no fuel. Had vehicle towed. OBDll showed 5 codes p0102, p0410, p0412, p0418, and p0433. Need help, fuel pump does no work.
Do you
have the same problem?
Yes
No
Monday, August 15th, 2011 AT 3:40 PM

7 Replies

Tiny
FACTORYJACK
  • EXPERT
Does the engine crank? When you say starter would not work, do you mean starter would not engage, or vehicle cranked and would not start? Power would need to be checked at the fuel pump connector, accessed through a hidden door in the trunk floor pan. If the gauge and the fuel pump are both inoperative, it would suggest a wiring problem.

On the trouble codes, they are all related to AIR system faults, with exception of the p0433 which does not show for this vehicle. Were they cleared after the solenoid repair? What often happens in conjunction with frame removal, which would of occurred during your TCC repair, is a poor connection at the AIR pump can be created. If the person electrically disconnects the air pump, and leaves it with the frame, odds are since the connector was tampered with, it has a problem. The amps that flow through the AIR pump, cause the terminals to be heated, and as long as the connector is not touched, there is no problem. Just a simple disconnect and reconnect can result in poor connection. I often take the AIR pump off the frame and leave it with the vehicle, instead of with the frame. Why, because I have had this happen and result in comeback for check engine light, which the customer just paid $2000 bucks to fix in the first place(P0741 TCC). If you don't hear the air pumps come on at start, you have a problem with the circuits. It(they) should come on at startup to speed the heating of the catalyst, and lower cold engine emissions. I would clear the codes first, if you haven't, and see what, if any, return.
Was this
answer
helpful?
Yes
No
Monday, August 15th, 2011 AT 4:33 PM
Tiny
RP PERRY
  • MEMBER
Only show one code now P0452. When you turn the ignition switch to start the car the dash goes blank, so no engagement so no engine start. Checked all transmission position same result. Battery voltage 12.56 Fuel pump not pumping. Could this car have a safety system shuting down starter circuit when the dash states fuel system is empty system?
Was this
answer
helpful?
Yes
No
Tuesday, August 16th, 2011 AT 2:25 AM
Tiny
FACTORYJACK
  • EXPERT
The starter should still engage, even if fuel level is low. P0452 is a fuel tank pressure sensor fault, which probably coincides with the empty fuel and no fuel pump. The fuel pump relay, the fuel level sensor, the fuel tank pessure sensor, and the starter relay as well, are all inputs/controlled by the PCM. The fact that yu can get codes out of the PCM indicates that it has power and is communicating, for the most part. Check the PCM BATT and PCM IGN fuses in the underhood fuse block, first of all. Since this all occurred after the transmission was removed, I would guess that it may be a result of something left loose, or improper assembly. Check second of all, the ground cable tha goes from the frame to the generator bracket in the right front corner of engine. If you had a split engine mount at some time, it can work strands apart at this cable. Another check would be the three grounds at the transmission case, under the thermostat area, and this may be where you find your problem. Check for looseness of any of these. The splice pack(has a bunch of black wires going into it) is G100, the PCM ground point. There could be a high resistance(poor) ground that is still allowing PCM communications, but not some other functions.
Was this
answer
helpful?
Yes
No
Tuesday, August 16th, 2011 AT 4:46 AM
Tiny
RP PERRY
  • MEMBER
All grounds check good problem still there. Act like immobilizer (TDM) effects starter and fuel system. What next would like to get this vehicle out of my garage.
Was this
answer
helpful?
Yes
No
Wednesday, August 17th, 2011 AT 9:44 PM
Tiny
FACTORYJACK
  • EXPERT
That would make sense if the only symptoms you had were a no crank/no start. You are also including no fuel gauge, which a theft deterrent problem would not cause, and a p0452 for the fuel tank pressure sensor. Do you have a scan tool that reads data, what is the sensor voltage value? What does the security indicator do, and are there any VTD codes?
Was this
answer
helpful?
Yes
No
Wednesday, August 17th, 2011 AT 11:57 PM
Tiny
RP PERRY
  • MEMBER
Retighted the three ground by the thermostat and the ground on the alternator. Engine starts now, fuel pump works, and fuel gauge works now. But still have two codes P0102 and P0452. The air cleaner is new and gas cap is less than a year old. Any suggestions
Was this
answer
helpful?
Yes
No
Friday, August 26th, 2011 AT 1:04 AM
Tiny
FACTORYJACK
  • EXPERT
Have you cleared them, and they have returned? P0102 relates to open intake air temp sensor which is part of the mass airflow sensor. The P0452 is fuel tank pressure sensor fault. It is included in the fuel pump module that would have been tampered with, when the fuel pump was replaced. Is it plugged in?
Was this
answer
helpful?
Yes
No
Friday, August 26th, 2011 AT 2:05 AM

Please login or register to post a reply.

Recommended Guides