Stalling and hesitating when cold - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Tempo Forum | Mercury Topaz Forum Forum for discussion of the Ford Tempo and Mercury Topaz.

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 07-23-06, 07:00 PM Thread Starter
Registered User
 
Join Date: Jan 2004
Posts: 3
Stalling and hesitating when cold

We have a 1994 Tempo, four cylinder, multi-port fuel injection, a standard transmission, and 201,000 miles. We have had it since new and have taken care of it. It has always started and ran well. Lately it takes quite a bit of cranking to start when cold, and will stall and hesitate when you give it the gas until it warms up. If it were carburated, I would say the choke wasn't coming on. Any ideas as to cause? The AutoZone counter man suggested the "cold-start injector," but I have a repair manual and it doesn't mention such a fifth injector. Is there something that is supposed to restrict airflow or add extra gas when cold? I have recently changed plugs, wires, distributor cap, fuel filter, and PCV valve. It runs better now, but the cold running condition hasn't improved.

DaughtersTempo is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 07-26-06, 07:27 PM
Hi-Tech Redneck
 
Johnny Mullet's Avatar
 
Join Date: Jun 2006
Location: Ashtabula, Ohio
Age: 45
Posts: 1,486
Re: Stalling and hesitating when cold

The fuel pump in the tank may be losing it's prime (leakdown) causing the cold-start and cold run condition.

Try renting a fuel pressure tester from a parts store. Hookm it up and monitor fuel pressure while it's running. I f it drops while acting up, then it may be a bad pump.
Johnny Mullet is offline  
post #3 of 3 (permalink) Old 10-09-06, 03:47 PM
Registered User
 
Join Date: Oct 2006
Posts: 5
Re: Stalling and hesitating when cold

There is an air temparture sensor located on the manifold. Some have it on the driver side, mine was located on the passenger side going into the #1 cyclinder air intake. The fuel mixture is affected by this sensor.
mmalf_mi is offline  
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Tempo Forum | Mercury Topaz Forum
Gear in this thread - Powered by O'Reilly Auto Parts


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome