How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask roybelding Your Own Question
roybelding
roybelding, ASE Certified Technician
Category: Cadillac
Satisfied Customers: 4835
Experience:  35 years of retail operations working on all vehicles.
3506196
Type Your Cadillac Question Here...
roybelding is online now
A new question is answered every 9 seconds

Cadillac Sedan DeVille: My 1987 Cadillac Sedan DeVille with

Customer Question

My 1987 Cadillac Sedan DeVille with 165k miles would crank but not start. I installed new ignition module, condenser, pickup coil, distributor cap and rotor, and HEI coil for cap. Set rotor at #1 plug and harmonic balancer set to TDC and installed jumper wire to a & b port for timing. Car starts, runs briefly and then seems to labor for fuel. Adusted timing forward and reverse but no improvement. Tried putting original module back in but no change. Unhooked battery to try and reset but no change. Any suggestions?
Submitted: 9 months ago.
Category: Cadillac
Expert:  roybelding replied 9 months ago.
good evening my name is ***** ***** I will assist did you check fuel pressure?? there is a port on the rail. you can rent a tester at a parts store to verify correct pressure Roy
Customer: replied 9 months ago.
Fuel pressure was never an issue. New fuel filter installed recently and no problems with fuel. Seems to be spark or timing related.
Expert:  roybelding replied 9 months ago.
with these symptoms, it still is very suspect. 87 car with an old pump. do you have spark to the plugs??? Roy
Customer: replied 9 months ago.
Originally no, but after replacing parts yes
Expert:  roybelding replied 9 months ago.
do you have a timing light to check ignition timing while cranking???
Customer: replied 9 months ago.
yes I've checked it several times
Expert:  roybelding replied 9 months ago.
and??? the reading???Roy
Customer: replied 9 months ago.
10 degrees before TDC, seems to run better at 12-14 but still stalls after running briefly
Expert:  roybelding replied 9 months ago.
ok, you are set there. back to fuel pressure.....
Customer: replied 9 months ago.
The surging seems to be more related to electrical within the distributor. Vacuum lines have been plugged. What is the correct fuel pressure?
Expert:  roybelding replied 9 months ago.
fuel pressure
Customer: replied 9 months ago.
Is the fuel pump electric or mechanical? How many are there and located where?
Expert:  roybelding replied 9 months ago.
one pump in the tank, electric Roy
Customer: replied 9 months ago.
OK thanks, ***** ***** the pressure
Expert:  roybelding replied 9 months ago.
please dont forget to rate me as it is the only way I get paid for my efforts Roy