Cadillac Repair: 86 Caddillac wont start, fuel pump relay, caddillac


Question
The website would not let me ask more questions on the 86 cady not starting when cold.  It said to ask a new question.  I did erase the fault codes as you directed. The engine spins as always but no starting.

Answer
When this is occurring do you have spark at the sparl plugs ?. If you DO, try putting some starting fluid in the intake manifold and see if it tries to start. If it tries to start, You have a fuel pump problem.

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..



let me know.