1994 Sable hot start problem - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Fordforums Community > USENET NewsGroups > alt.autos.ford
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-18-2005, 23:01   #1 (permalink)
stig
Guest
 
Posts: n/a
1994 Sable hot start problem

Every second day or so, it takes several cranks to start the car when left
hot
for half an hour or more. It appears that there is no spark, but since it
always starts
it is hard to find the problem. Air bypass valve replaced by Ford as an
attempt to fix it, first and last...
I replaced coil, ignition module, wires, cap, spark plugs, coolant temp
sensor,
New fuel pump, filter and battery. Cold start no problem, runs excellent but
this hard
starting when hot gets me stumped.
This started last summer and continues without getting better or worse.
Code reader shows nothing.
Any ideas?
3.8 engine, 237 000 km.

thanks,

Stan


  Reply With Quote
Sponsored Links
Advertisement
 
Old 08-19-2005, 05:01   #2 (permalink)
Backyard Mechanic
Guest
 
Posts: n/a
Re: 1994 Sable hot start problem

"stig" <stan.stelmach@rogers.com> wrote in news:HM6dnTX2NuCl9pjeRVn-
pw@rogers.com:

> . It appears that there is no spark, but since it
> always starts
>

What is the evidence? How did you test for spark?
Borrow OR buy a cheap timing light and have it ready.

One thing you HAVENT mentioned is adjusting fuel delivery while cranking.
What's the effect of pedal to floor; or pumping the accelerator?
Pedal to floor will overcome leaky injector syndrome, which is a
possibility but not the ONLY cause, which could also be the tps.
You also havent mentioned the TPS; unlike the TFI (which only needs
serviced), and most other sensors, the TPS IS a wear item and should be
replaced if it's the original. Echlin is a good mfr

Another tip: If it's having this fit, turn off key, and disconnect the MAF
connector. If it then starts, clean the MAF and see if it reoccurs.

Also if your TPS is flaky then checking driveability without the MAF will
point it out.
- - - - - - -- - - -- -
You've fallen into the worst of traps.

Apparently you've spent well over $750 attempting to solve this.

On the plus side, you might have replaced some of those anyway..

  Reply With Quote
Old 08-19-2005, 08:01   #3 (permalink)
Bob Urz
Guest
 
Posts: n/a
Re: 1994 Sable hot start problem



stig wrote:
> Every second day or so, it takes several cranks to start the car when left
> hot
> for half an hour or more. It appears that there is no spark, but since it
> always starts
> it is hard to find the problem. Air bypass valve replaced by Ford as an
> attempt to fix it, first and last...
> I replaced coil, ignition module, wires, cap, spark plugs, coolant temp
> sensor,
> New fuel pump, filter and battery. Cold start no problem, runs excellent but
> this hard
> starting when hot gets me stumped.
> This started last summer and continues without getting better or worse.
> Code reader shows nothing.
> Any ideas?
> 3.8 engine, 237 000 km.
>
> thanks,
>
> Stan
>
>

Maybe an injector(s) leaking when hot? Then either lack of fuel pressure
for a time or a flooding clearing?

Bob

----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----
  Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Fordforums Community > USENET NewsGroups > alt.autos.ford



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are Off
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 19:45.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.