Ask Your Car Question. Car Experts Answer You ASAP.

(Not a Car Question?)

my 96 lesabre does not start. it cranks over but does not start
Sent to Car Experts September 03 10:02 PM

it cranks over and does not start

Customer (name blocked for privacy)
Status:  Closed   Value: $5
Answer
September 3 10:04 PM (2 minutes and 3 seconds later)
         
REPLIEDCheck Mark

You need to first test a few functions during the failure.

1) Test for spark at the plug end of the wire using a spark tester.
2) Test for injecter pulse using a small bulb called a noid light.
3) Use a fuel pressure gauge to test for correct fuel pressure.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.

Here's what the noid light looks like.

Images available only to Customers.

Picture
Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2714 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
Reply
September 5 1:50 PM (1 day and 15 hours later)
         
Reply to Hammer Time's Post: I have found fuel pressure and spark, but no noid. what would be my next step. oh and i have batt. voltage at the injectors and no codes in the computor
Customer (name blocked for privacy)
Answer
September 5 2:05 PM (14 minutes and 35 seconds later)
         
REPLIEDCheck Mark

Are you saying you have spark but no injecter pulse?

What is the fuel pressure?

Picture
Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2714 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
Reply
September 5 2:10 PM (5 minutes and 8 seconds later)
         
Reply to Hammer Time's Post: correct, I have spark but no injector pulse. Fuel pressure is between 50 and 60 psi.
Customer (name blocked for privacy)
Answer
September 5 2:41 PM (30 minutes and 49 seconds later)
         
REPLIEDCheck Mark
Does the check engine light come on for a bulb check when the key is turned on without starting?
Picture
Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2714 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
Reply
September 5 2:58 PM (17 minutes and 52 seconds later)
         
Reply to Hammer Time's Post: yes it does
Customer (name blocked for privacy)
Answer
September 5 3:03 PM (4 minutes and 34 seconds later)
         
ACCEPTEDCheck Mark

If your 100% sure you have spark and power supply at the injecters, it's really looking like a bad computer.

Picture
Hammer Time -- L1 Master Technician -- 98% Positive Feedback on 2714 Car Accepts
ASE Mastertech with Adv level Engine performance cert.
Think you can answer this question?
Login or Become an Expert

Related Answers

 

DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.

Just Answer! > Car Repair