KB cobra will not start.

jongrant

New Member
Established Member
Joined
Sep 20, 2007
Messages
181
Location
Virginia Beach
The car had no signs of any problems and had been running perfect the past few days. Although I noticed the battery light would dimly flicker under semi-hard acceleration.
Anyway
I stopped by a chik fil a down the street, got back in the car with the motor turning over and over. :dw:
I immediately figured it was the frps which went out a couple months back when a similar issue happened. I had a brand new one laying around so I installed that and got the same results.
It has a half tank of gas.
Checked the schrader valve and noticed a tiny bit of air coming out but no gas.
Checked the fuse for the Boost-a-pump. The fuse itself was fine but the fuse holder itself appeared to be corroded. I still replaced both holder and 30amp fuse. No progress.
I then noticed the fuel pumps weren't priming with the key turned on but I would hear a clicking coming from that location.
Checked the Inertia Cutoff switch to see if the button had moved. Desperate at this point, I clicked the button both ways for the hell of it and tried both times.:poke:
Replaced the Constant Control Relay Module the following night and nothing.

In the process of purchasing the car from Chris@BAP back in December, the Ford GT pumps/Fore Hat were being installed. I wouldn't think they would fail so soon? Especially both at once? Its gotta be something small :??:

At this point I'm stuck and out of ideas. Too hard-headed to get it towed to a shop but if thats what it'll take then I'll do so. Just wanted to ask for some feedback on something I may be skipping over and opinions.

Any ideas guys? :idea:

Appreciate your inputs in advance :beer:
 

03slobra2

POSI "race"port FTW
Established Member
Joined
Feb 16, 2009
Messages
1,268
Location
Lincoln, Nebraska
Wow... did you check the fuel filter? maybe its getting a restriction there over working the pumps and burning them up???

Its not getting fuel somehow... there's either a obstruction or the pumps not working...
 

jongrant

New Member
Established Member
Joined
Sep 20, 2007
Messages
181
Location
Virginia Beach
I figured I would at least hear the pumps prime with the key on regardless of possibly having a bad fuel filter. Maybe I'm wrong. I don't understand how it would go from running perfectly fine to nothing the next moment?
 

jm@ReischePerf

Owner & Operations Mgr
Established Member
Premium Member
Joined
Oct 20, 2006
Messages
4,628
Location
San Antonio
Although I noticed the battery light would dimly flicker under semi-hard acceleration.
For sure you've got a problem with your alternator. These cars can turn the engine over on less than 10V but the low voltage could create a problem for other systems. You need to get a diagnostic tool in there and check voltage first, if it is good then see if you're reading any fuel pressure. Maybe a line in the tank popped off or a wire came loose somewhere or you've got a bad BAP.
 
Last edited:

Redfirecobra04

New Member
Established Member
Joined
May 27, 2006
Messages
184
Location
London, Ontario
I had a similar issue and it turned out to be the MAF sensor. The engine would turn, car would burb and that was it. Short or batt problem also sounds like a possibility.
 

Users who are viewing this thread



Top