# ZX2 has trouble starting in cold **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [November 15, 2005, 5:37pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607 "2005-11-15T17:37:05Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 11, 2006, 5:43pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/21 "2006-02-11T17:43:00Z")
the pump is not bleeding back, i took the hose off the fuel pump when the car was cold and fuel pumped right out, strong as hell immediately ---
**Author:** ![focusinprogress](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/focusinprogress/32/7227_2.png) [@focusinprogress](https://forums.speedlife.net/u/focusinprogress)\ **Post date:** [February 12, 2006, 8:04am UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/22 "2006-02-12T08:04:22Z")
chances are, with the info you have given, its a clogged IAC or the IAC is on its way out. usually when a car is extremely hard to start/stumbles, etc. its IAC, and when that is totally shot, the car wont start unless your almost flooring the gas, and then you cant let completly off the gas to shift it into gear, and have to break torque it at lights and such so it doesnt die. i have the haynes manual for the focus, so it should be the same as the ZX2, so if you want i can scan in the page for where the IAC is and email it to you ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 12, 2006, 9:20am UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/23 "2006-02-12T09:20:22Z")
well, once the car starts, it run fine. feels like a tad bit of a rough idle, but other then that it feels fine once its running. i was thinking maybe the fuel pressure regulator. I really cant be guessing here tho. We have little to no money to buy parts, so when i buy a part, that HAS to be the problem. i am gonna check up on this other stuff tho and let u know how it goes ---
**Author:** ![h8750](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/h8750/32/7372_2.png) [@h8750](https://forums.speedlife.net/u/h8750)\ **Post date:** [February 12, 2006, 5:29pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/24 "2006-02-12T17:29:41Z")
> [@boardjnky4](#): > > In the morning u get in the car and start cranking and u get nothing. Then i stop cranking it, and i go from off to on position(so that the pump will run) about 10 times and the pump runs every time. then crank it for a second and it hesitates a bit but starts up. normally when you shut the car off there is about 40psi rail psi maintained, whats happening is overnight the psi is bleeding off to 0, priming the pump several times builds line psi again, either the regualtor is getting weak and bleeding back psi, or the drain back valve in the pump is going make sure the fuel filter is fresh ---
**Author:** ![focusinprogress](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/focusinprogress/32/7227_2.png) [@focusinprogress](https://forums.speedlife.net/u/focusinprogress)\ **Post date:** [February 12, 2006, 6:05pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/25 "2006-02-12T18:05:11Z")
^^ very good point, wouldnt have thought of that ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 12, 2006, 6:20pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/26 "2006-02-12T18:20:50Z")
it should NOT take 15 minutes to build the pressure in the system back up, maybe an extra few turns. Im thinking that the fuel regulator might just be failing under initial start since pressure under initial start is a little higher then under a warm start. focusinprogress, can u find out about that adapter so i can get a pressure guage on the rail and figure out if i have a pressure problem? ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [February 12, 2006, 6:38pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/27 "2006-02-12T18:38:23Z")
I have the adaptors for pretty much every damn car made. ---
**Author:** ![focusinprogress](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/focusinprogress/32/7227_2.png) [@focusinprogress](https://forums.speedlife.net/u/focusinprogress)\ **Post date:** [February 12, 2006, 7:30pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/28 "2006-02-12T19:30:39Z")
the site that sells them is currently down…ill let ya know as soon as they get it back up ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 13, 2006, 6:30am UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/29 "2006-02-13T06:30:26Z")
> [@RacerX](#): > > I have the adaptors for pretty much every damn car made. help me out then man, i need to get this taken care of ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [February 13, 2006, 9:50am UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/30 "2006-02-13T09:50:12Z")
I work 8-5 during the week. We’d have to set something up for after that. We’ll be doing it outside in the cold so I’m gonna need Tim Horton’s, Beer or both. Let me know when you can bring your car by and I’ll bring the tools and pressure test set home. ---
**Author:** ![h8750](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/h8750/32/7372_2.png) [@h8750](https://forums.speedlife.net/u/h8750)\ **Post date:** [February 13, 2006, 3:55pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/31 "2006-02-13T15:55:53Z")
it doesn’t take 15min to cycle the key 10x good luck, I offered all the insight I can… ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 13, 2006, 4:16pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/32 "2006-02-13T16:16:56Z")
i can do it wed. night…illbring tmmiy hos n a six pack and maybe some food…lemme kno ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [February 14, 2006, 5:27pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/33 "2006-02-14T17:27:22Z")
sent you a PM ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 15, 2006, 3:17pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/34 "2006-02-15T15:17:34Z")
just went to racerx’s to diagnose the car. fuel pressure is bleeding back officially. We put it on the computer and it dropped to 0 in about 15 minutes. There is no return line or regulator so its gotta be the pump. When i get the pump and throw it in ill update. Thanks again man, i owe u one ---
**Author:** ![focusinprogress](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/focusinprogress/32/7227_2.png) [@focusinprogress](https://forums.speedlife.net/u/focusinprogress)\ **Post date:** [February 15, 2006, 3:24pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/35 "2006-02-15T15:24:02Z")
o yea…i forgot, the fuel pump on the earlier foci were recalled, i bet its the same damn pump with the same problem…completely forgot about that. ---
**Author:** ![Maksim2000](https://avatars.discourse-cdn.com/v4/letter/m/dec6dc/32.png) [@Maksim2000](https://forums.speedlife.net/u/Maksim2000)\ **Post date:** [February 15, 2006, 4:06pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/36 "2006-02-15T16:06:56Z")
It is a fuel pump, same thing happened on my friend’s ZX2 (ford comped her parts and she had to pay labor on it) - there is some sort of TSB out on it. ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 15, 2006, 4:38pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/37 "2006-02-15T16:38:53Z")
> [@Maksim2000](#): > > It is a fuel pump, same thing happened on my friend’s ZX2 (ford comped her parts and she had to pay labor on it) - there is some sort of TSB out on it. im gonna call ford tomorow then ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 15, 2006, 7:49pm UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/38 "2006-02-15T19:49:31Z")
[http://www.alldata.com/TSB/19/011948en.html](http://www.alldata.com/TSB/19/011948en.html) , def was a recall on the pump ---
**Author:** ![RacerX](https://avatars.discourse-cdn.com/v4/letter/r/5e9695/32.png) [@RacerX](https://forums.speedlife.net/u/RacerX)\ **Post date:** [February 16, 2006, 10:28am UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/39 "2006-02-16T10:28:35Z")
I don’t see a fuel pump recall there. ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [February 16, 2006, 11:19am UTC](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607/40 "2006-02-16T11:19:32Z")
called em today, its not a fuel pump recall its a programming thing. causes the car to stall. hey racerx, ford has the fuel pump assy. for 140, whats the difference btwn carquest’s and ford’s? EDIT: will ford’s pump just fail again? [Previous page](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607.md?page=1) [Next page](https://forums.speedlife.net/t/zx2-has-trouble-starting-in-cold/4607.md?page=3)