93 Taurus - Starting issue

To all with good advice, Thanks in advance.
Problem I have is this poor little white Taurus dont want to run.
Fuel Pump doesn't "kick-in" when key is turned on, Check Engine light does
not come on when Key turned on. Attempting to check Diagnostics, as similar has happened before, Still no Check Engine light.
History; Over past couple of years, the car would periodically not start, Cooling Fan would come on and the Fuel pump would run at what I would call a "reduced speed". anywhere from 10 - 30 minutes, the fan would quit - Fuel pump would kick in and pressure up the system and the car would immediately start. Only occurred in the Summer "humid" months
Any thoughts?
--
Thanks,
Lynn



Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Lynn Ackerson wrote:

Bob
-
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Really? Bad ignition switch can cause fuel pump and fan issues, and check engine light malfunction? I guess that is one thing to check, I will look into that one today and get back.
--
Thanks,
Lynn Ackerson
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Lynn Ackerson wrote:

shop manuals and trace every circuit back to its source and determine what has power and what does not.
You may also have a wire harness that has chaffed and been cut somewhere. I junked a taurus once and the harness on the drivers side over the end of the engine was chaffed and cut in places.
The fan and fuel pump are also controlled by the CCRM relay module that is located over the radiator. Sometimes these modules can develop bad connections internally and cause some problems.
Bob
-
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Bob, thanks for re-plies, the relay module on the radiator is on its 4th replacement, seems to help for 1-2 days, but then a weather shift - again humidity seemed to be a factor. Now, I have nothing. no indication the fuel pump is responsive, fan no longer comes on. ignition switch seems to be ok, although I still cannot get a "check engine light" to perform MIL diagnostics, Fuel Pump testing is not happening either.
Question: if the Fuel Pump IS bad, shouldn't I be able to get a reading off the of the MIL diagnostic checks? or at least an indication of "no fuel"?
Again, Appreciate the help.
--
Thanks,
Lynn



Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Lynn Ackerson wrote:

wire the pump and then get a fuel pressure gauge and put it on the fuel rail test port and check pressure. Keep in mind there is a roll over switch in the trunk i believe that could also cut power to the pump if its intermittent. Or even a bad connection on the in tank pump. Any way you look at it, you need to see where you have power and where you don't when this happens
Bob

-
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Everything points to the CCRM, Did some investigating on a few sights today, as well as troubleshooting on the vehicle. All symptoms point to the module.
thanks again
--
Thanks,
Lynn Ackerson
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.