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1999 Acura CL won't start
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vrb1283
New User
Mar 24, 2012, 10:41 AM
Post #1 of 2
(5503 views)
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1999 Acura CL won't start
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HELP! I have a 1999 Acura CL - 3.0 with 76,000 miles on it. It's been an awesome car, but I'm having some troubles lately. One morning I went to start my car to leave for work, and it wouldn't start! I had just driven it the night before and it ran fine! No check engine light or any signs of why it might not be starting. After checking it out, I really thought it was the fuel pump. So I bought and replaced the fuel pump, filter and plugs - STILL will not start! Fuel is still not getting to the cylinder. I also checked all fuses and all were fine. After racking my brain over what it could be, I have 2 buddies that are telling me it could be a couple of things: #1 main relay or #2 crank sensor. I took out the relay to see if I could see any cracks, and it looked okay to me. Ironically our other car died too so we had to drop $600 into that to get it up and running. I need to fix the Acura, but I want opinions on what I should try first. Has anyone else had this problem or maybe have some insight as to what the problem may be?
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 24, 2012, 10:59 AM
Post #2 of 2
(5483 views)
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Re: 1999 Acura CL won't start
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All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.
Every engine requires spark, fuel and compression to run. That's what we have to look for.
These are the basics that need to be tested and will give us the info required to isolate a cause.
1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.
2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.
4) If all of these things check good, then you would need to do a complete compression test.
Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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