stalling issue thread #3

[06silverbullet]

so, i done several threads each time i thought i had it all figured out.

basically unless i find an answer in the next couple days i'm selling the damn car obver beating myself up trying to figure it out.

i've changed:

fpdm
sjb
fuel pump
fuel filter
cps

taken it to ford and had them look at it and they couldnt figure it out.

i literally got the car down to ford today to have the keys ect programmed tro the new sjb drove it to a gas station shut it off and when i tried to start it would crank but not fire. cranked til the battery basically died

whats your guy's thoughts? ive exhausted everything and every option and spent well over 1k bucks trying to get it resolved over the past year with no luck.

 

[BruceH]

Something is intermittent. How good does the cps connector fit the cps? I'd even go as far as ordering a new cps connector and splicing it in. I say this because I once chased a bad a/c connector for two years. It would work intermittently.

I'd also clean the main motor grounds and reassemble. One is near the passenger motor mount and the other goes from the rear of the driver side head to the body near the cowl.

 

[06silverbullet]

Something is intermittent. How good does the cps connector fit the cps? I'd even go as far as ordering a new cps connector and splicing it in. I say this because I once chased a bad a/c connector for two years. It would work intermittently.

I'd also clean the main motor grounds and reassemble. One is near the passenger motor mount and the other goes from the rear of the driver side head to the body near the cowl.

cps fit fine connector looked in good condition.

but the weird thing if it was a ground why would it not start after being parked? i literally parked it for no more than 15 minutes and it wouldnt start. doesn't make sense i could see if it died while driving only. then to make it weirder once it sits for a while it'll fire up?

 

[saleen07gt]

You've got to determine what your missing during the crank no start. What is missing ?spark, injector pulse or fuel pressure.

 

[ArtQ]

i literally parked it for no more than 15 minutes and it wouldnt start. doesn't make sense i could see if it died while driving only. then to make it weirder once it sits for a while it'll fire up?

The spark plugs are loading up and getting wet with fuel. While it's running they will "clean themselves" but on shut down they get wet and foul out. Immediate restart will not happen until they dry off. After shut down pull a plug and see how wet it is.

Old plugs will do this from time to time, Wrong heat or gap. Leaking injectors, internal leakage of fuel rail pressure sensor can also send raw fuel in to the manifold if the diaphram is broke/cracked

 

[06silverbullet]

The spark plugs are loading up and getting wet with fuel. While it's running they will "clean themselves" but on shut down they get wet and foul out. Immediate restart will not happen until they dry off. After shut down pull a plug and see how wet it is.

Old plugs will do this from time to time, Wrong heat or gap. Leaking injectors, internal leakage of fuel rail pressure sensor can also send raw fuel in to the manifold if the diaphram is broke/cracked

but would it cause it to stall while driving as well? i will deffinitely check this out. spark plugs have about 40k'ish miles.

 

[ArtQ]

I didn't see anything about it stalling in this thread. Is it still stalling like you described before the SJB change?

 

[06silverbullet]

I didn't see anything about it stalling in this thread. Is it still stalling like you described before the SJB change?

sorry, yeah it will die while driving like some flicked a switch bo sputtering popping anything just shuts down completely. then it wont start for a while. it will crank but not fire. i can't replicate the stalling while driving it just happens when it so desires.

yes it still stalls exactly the same way as before and or does not want to start loke before the sjb was replaced.


previous threads trying to figure this out

http://www.s197forum.com/forum/showthread.php?t=115853

http://www.s197forum.com/forum/showthread.php?t=115288

 

[deebo05]

sounds like something electrical is getting hot and shutting down, fuel pump relay maybe or the ecu relay, or something has worked its way loose.

also I have seen the plugs on the bottom of the bec become loose over time and cause weird things to happen.

 

[06silverbullet]

bec?

 

[JeremyH]

What year fuel pump? There is a stall tsb for 05/06 fuel pump assemblies.

 

[06silverbullet]

i bought a newer one. 08 or 09 cant remember.

 

[deebo05]

bec is the fuse block under the hood. check to see if those bolts are snug also pull those connectors under there and check for corrosion or heat.

 

[06silverbullet]

ok cool thanks. i'm gonna go back to square one. i'll check thr grounds, deffinitely gonna see if the plugs are gettig loaded although my afr is fine, cant hurt.

jeremy i've replaced the entire fuel system filter back to the pump. pretty sure its not that as nothing has changed.

really baffled by this car, i really want to just give up but damn thing is paid off loo hard pill to swallow on that.

 

[HitandRunDriver]

Damn Vince you aren't catching any breaks at all.

 

[Johnf78]

Is there a remote starter installed?

 

[06silverbullet]

Damn Vince you aren't catching any breaks at all.

tell me about it. nothing with this car was ever simple something always had to be a royal pita.


there is no remote starter installed on my car

 

[Paps]

Do you hear fuel pump priming when turning key to ON position?
I got a problem with fuel pump relay before.

 

[06silverbullet]

Do you hear fuel pump priming when turning key to ON position?
I got a problem with fuel pump relay before.

i believe so, never listened that closely to it. but if it was the relay wouldnt it sputter to a stop not just instantly die?

 

[JeremyH]

Relay can be intermittent if the coil is failing. If you relay fails you will have zero power to the pump and the car will abruptly die. When it happens and the car wont start try tapping on the relay or swapping it with something like the horn relay etc and see it is starts.

Do you ever get a flashing check engine light with no codes?