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 kalamykid Your Own Question
kalamykid, Shop Owner/ Tech
Category: Chevy
Satisfied Customers: 4026
Type Your Chevy Question Here...
kalamykid is online now
A new question is answered every 9 seconds

2001 Suburban 1500 cranks but no start. No pressure read at

Customer Question

2001 Suburban 1500 cranks but no start. No pressure read at schroeder valve. Just replaced alternator that tested at 8.9 volts.
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: Yes I did.
JA: Are you fixing your Suburban 1500 yourself? What have you tried so far?
Customer: Tried to reset passlock myself. The security light does not come on the display
JA: Anything else you want the mechanic to know before I connect you?
Customer: After it sat overnight, when I turned on ignition I could hear a click at the relay/fuse box and the fuel pump could be heard humming for a few seconds before trying to start. Subsequently the fuel pump does not make any sound when turning on ignition.
Submitted: 9 months ago.
Category: Chevy
Expert:  kalamykid replied 9 months ago.

Can you tell me step by step how you tried to reset the anti theft system?

Customer: replied 9 months ago.
Tried to start, it did not. Left key in on position for 10 minutes, tried to start, no luck, kept on for additional 10 minutes, tried to start, no luck. At no point during the process did the security light appear on the display.
Customer: replied 9 months ago.
Are you there?
Expert:  kalamykid replied 9 months ago.

Try this for me please. Turn the ignition switch straight from off to start and let go of the key so it goes back to run. Do not pause at all till the switch is in the run position. Then see if the security light comes on. if it does see if it goes out after 10 minutes. When the light goes out after 10 minutes, turn the switch off, wait 5 seconds, and then go right back to start and then back to run and wait for the light to go out again. then you have to go back off, wait 5 seconds, and right back to start and then to run and wait 10 minutes again. This time when the light goes out, turn the switch back to off wait 5 seconds and see if the truck will start.

Customer: replied 9 months ago.
I will be able to try this in about one hour from now. What is the best way to determine if it is a passlock issue or fuel pump related if it does not reset after trying the above directions on resetting the passlock? Sorry I can't get to the vehicle right away.
Expert:  kalamykid replied 9 months ago.

If this does not work, come back to this chat screen and we can work from there. There are a few things you will need, a test light, a digital volt meter and a fuel pressure tester. Do you have these, or can you pick them up on your way home? The test light and digital volt meter will cost you around $30.00, and most auto parts stores like auto zone and oriely"s rent the fuel pressure tester and when you return them they give you all your money back for the tester.

Customer: replied 9 months ago.
Thanks, ***** *****
Expert:  kalamykid replied 9 months ago.

Chat with you when you get home.