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Author
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Topic: No Spark question (kinda long)
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N8
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Member # 6048
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posted
 
 
Ok my (94, bone stock beside 65mm TB)Cobra has been having a little issue that just got worse the other day. But here is what it was doing. Ok started doing the surging idle thing, Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt. Since the car stays parked 98% of the time I didnt trip. But today I needed to drive it so I checked what was what with my minimal mechanic skills well I am getting no spark. So I call a friend over and he looks at a few things and narrows it down to the CPS (Crank Position Sensor) or the ignition module.
My questions are, would the crank position sensor cause that? He said there was a lil pooling up by the water pump and that was leaking down the side and could have gunked up or shorted out the sensor. I never heard of this happening before so that is whay I am curious. Also he said it could be the ignition module which I am curious about as well. Anyway just wondering what else could cause no spark? And is there some other things I can test? It seems the problem got worse as time progressed.
Any input is welcome.
Posts: 11638 | Registered: Sep 2005
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BIGBALLFACTOR
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Member # 7277
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posted
quote:
Originally posted by N8:
Ok my (94, bone stock beside 65mm TB)Cobra has been having a little issue that just got worse the other day. But here is what it was doing. Ok started doing the surging idle thing, Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt. Since the car stays parked 98% of the time I didnt trip. But today I needed to drive it so I checked what was what with my minimal mechanic skills well I am getting no spark. So I call a friend over and he looks at a few things and narrows it down to the CPS (Crank Position Sensor) or the ignition module.
My questions are, would the crank position sensor cause that? He said there was a lil pooling up by the water pump and that was leaking down the side and could have gunked up or shorted out the sensor. I never heard of this happening before so that is whay I am curious. Also he said it could be the ignition module which I am curious about as well. Anyway just wondering what else could cause no spark? And is there some other things I can test? It seems the problem got worse as time progressed.
Any input is welcome.
94 not not have crank position sensor.its most likely the tfi module going bad on you its a common problem
Posts: 6908 | From: okc | Registered: Dec 2006
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N8
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Member # 6048
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posted
quote:
Originally posted by fasthatch:
quote:
Originally posted by N8:
Ok my (94, bone stock beside 65mm TB)Cobra has been having a little issue that just got worse the other day. But here is what it was doing. Ok started doing the surging idle thing, Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt. Since the car stays parked 98% of the time I didnt trip. But today I needed to drive it so I checked what was what with my minimal mechanic skills well I am getting no spark. So I call a friend over and he looks at a few things and narrows it down to the CPS (Crank Position Sensor) or the ignition module.
My questions are, would the crank position sensor cause that? He said there was a lil pooling up by the water pump and that was leaking down the side and could have gunked up or shorted out the sensor. I never heard of this happening before so that is whay I am curious. Also he said it could be the ignition module which I am curious about as well. Anyway just wondering what else could cause no spark? And is there some other things I can test? It seems the problem got worse as time progressed.
Any input is welcome.
94 not not have crank position sensor.its most likely the tfi module going bad on you its a common problem
Would that cause the intermittent issues I was experiencing? Like can it slowly go out? Oh yea thanks for the quick response. ![[patriot]](graemlins/patriot.gif)
[ December 04, 2009, 12:59 AM: Message edited by: N8 ]
Posts: 11638 | Registered: Sep 2005
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BIGBALLFACTOR
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Member # 7277
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posted
quote:
Originally posted by N8:
quote:
Originally posted by fasthatch:
quote:
Originally posted by N8:
Ok my (94, bone stock beside 65mm TB)Cobra has been having a little issue that just got worse the other day. But here is what it was doing. Ok started doing the surging idle thing, Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt. Since the car stays parked 98% of the time I didnt trip. But today I needed to drive it so I checked what was what with my minimal mechanic skills well I am getting no spark. So I call a friend over and he looks at a few things and narrows it down to the CPS (Crank Position Sensor) or the ignition module.
My questions are, would the crank position sensor cause that? He said there was a lil pooling up by the water pump and that was leaking down the side and could have gunked up or shorted out the sensor. I never heard of this happening before so that is whay I am curious. Also he said it could be the ignition module which I am curious about as well. Anyway just wondering what else could cause no spark? And is there some other things I can test? It seems the problem got worse as time progressed.
Any input is welcome.
94 not not have crank position sensor.its most likely the tfi module going bad on you its a common problem
Would that cause the intermittent issues I was experiencing? Like can it slowly go out? Oh yea thanks for the quick response.
yes it can the get real bad from the heat buy two an keep on in the glove box
Posts: 6908 | From: okc | Registered: Dec 2006
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JohnB
Tech Moderator
Member # 969
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posted
It's bolted to the inner fender under your mass air assembly.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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N8
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Member # 6048
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posted
quote:
Originally posted by JohnB:
It's bolted to the inner fender under your mass air assembly.
Its the thing with the heat sink around it?
Posts: 11638 | Registered: Sep 2005
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JohnB
Tech Moderator
Member # 969
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posted
quote:
Originally posted by N8:
quote:
Originally posted by JohnB:
It's bolted to the inner fender under your mass air assembly.
Its the thing with the heat sink around it?
Yup, you got it.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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N8
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Member # 6048
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posted
quote:
Originally posted by JohnB:
quote:
Originally posted by N8:
quote:
Originally posted by JohnB:
It's bolted to the inner fender under your mass air assembly.
Its the thing with the heat sink around it?
Yup, you got it.
Your a gentleman and a scholar. Thanks. oh and thanks fasthatch
Posts: 11638 | Registered: Sep 2005
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DIRTY SALLY
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Member # 7845
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posted
in 94 ford moved the module to the inner passenger fender wall do the fact that the heat was causing major problems to the tfi. on the dizzy change your fuel filter 2 and make sure your blinker fluid id full because that can cause major problems to
[ December 04, 2009, 12:27 PM: Message edited by: CALiFORNIAGT ]
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Savage Habits
instagram @2cheezen
Posts: 9145 | Registered: Aug 2007
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N8
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Member # 6048
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posted
quote:
Originally posted by CALiFORNIAGT:
....make sure your blinker fluid id full because that can cause major problems to
Dang that reminds me, gotta check the muffler bearing too. Thanks for the heads up
Posts: 11638 | Registered: Sep 2005
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turbo50
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Member # 6700
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posted
Sounds like more of a fuel pump/filter/regulator issue to me to be honest.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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turbo50
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Member # 6700
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posted
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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N8
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Member # 6048
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posted
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
hmmm.... But I am actually not getting any spark. Fuel sys would cause that?
[ December 04, 2009, 01:29 PM: Message edited by: N8 ]
Posts: 11638 | Registered: Sep 2005
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turbo50
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Member # 6700
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posted
quote:
Originally posted by N8:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
hmmm.... But I am actually not getting any spark. Fuel sys would cause that?
No fuel system has nothing to do with spark.
You actually checked for spark at the coil? Plug? Plug wire?
--------------------
.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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N8
¯
Member # 6048
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posted
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
hmmm.... But I am actually not getting any spark. Fuel sys would cause that?
No fuel system has nothing to do with spark.
You actually checked for spark at the coil? Plug? Plug wire?
Yes checked for spark to coil, to dist, to plug.
Posts: 11638 | Registered: Sep 2005
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asskickn88
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Member # 4957
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posted
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
hmmm.... But I am actually not getting any spark. Fuel sys would cause that?
No fuel system has nothing to do with spark.
You actually checked for spark at the coil? Plug? Plug wire?
You can have the two problems and them not be linked. The hard starting sounds like fuel to me too. Your pump has a check valve in it and when they go bad it won't hold pressure in the fuel line when you shut the car off. This causes the system to need to prime before it will start causing the long cranking period. If the hard start problem persists after you get it running again try turning the key to the run position and let the pump prime before trying to start it. If this helps then your pump is going out. I can check it out for you when I come down for that computer stuff if you want.
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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BLK 90 GT 5.0
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Member # 7534
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posted
Sounds like the coil 2 me. A few of my boys had same prob one of them even pulled the hole front of his motor apart lol and for allthem it was the coil
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-916 MUSCLE-
90 Gt
02 lancer
Posts: 836 | From: SAC (916) | Registered: Mar 2007
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N8
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Member # 6048
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posted
quote:
Originally posted by asskickn88:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
hmmm.... But I am actually not getting any spark. Fuel sys would cause that?
No fuel system has nothing to do with spark.
You actually checked for spark at the coil? Plug? Plug wire?
You can have the two problems and them not be linked. The hard starting sounds like fuel to me too. Your pump has a check valve in it and when they go bad it won't hold pressure in the fuel line when you shut the car off. This causes the system to need to prime before it will start causing the long cranking period. If the hard start problem persists after you get it running again try turning the key to the run position and let the pump prime before trying to start it. If this helps then your pump is going out. I can check it out for you when I come down for that computer stuff if you want.
Actually that would be awesome. The computer stuff should be ready this weekend too (sorry for the delay on that).
Posts: 11638 | Registered: Sep 2005
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DIRTY SALLY
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Member # 7845
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posted
if u have spark from the coil wire coil is good if u have no spark from the spark plugs the tfi is bad,
instead of playin video games all day get your hands a little dirty and give your cobra some lovin give a nice good tune up, tfi, cap, rotor, plug wires, new spark plugs , fuel filter check the pump, like u said it just sits there throw it on some jack stands and get to workin ![[Wink]](wink.gif) ![[Big Grin]](biggrin.gif) ![[Razz]](tongue.gif) ![[Whoo Whooooo!]](graemlins/woowoo.gif) ![[worship]](graemlins/worship.gif) ![[burnout]](graemlins/burnout.gif)
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Savage Habits
instagram @2cheezen
Posts: 9145 | Registered: Aug 2007
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asskickn88
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Member # 4957
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posted
quote:
Originally posted by N8:
quote:
Originally posted by asskickn88:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
quote:
Originally posted by turbo50:
quote:
Originally posted by N8:
Then when I would drive somewhere when I would park for a bit and get back in the car it would either take quite a few cranks to start or wouldnt start. So finally the other day I go to start it and it doesnt.
This is why I say that.
hmmm.... But I am actually not getting any spark. Fuel sys would cause that?
No fuel system has nothing to do with spark.
You actually checked for spark at the coil? Plug? Plug wire?
You can have the two problems and them not be linked. The hard starting sounds like fuel to me too. Your pump has a check valve in it and when they go bad it won't hold pressure in the fuel line when you shut the car off. This causes the system to need to prime before it will start causing the long cranking period. If the hard start problem persists after you get it running again try turning the key to the run position and let the pump prime before trying to start it. If this helps then your pump is going out. I can check it out for you when I come down for that computer stuff if you want.
Actually that would be awesome. The computer stuff should be ready this weekend too (sorry for the delay on that).
Cool, I'm working all day tomorrow but will be clear most of the day Sunday so if that works let me know. I'm sure we can get it going one way or another. If nothing else I can figure out what happened and tell you what to get for it.
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Three 540 Bimmers and a 5.0 Explorer.... got a Ford back in the stable!
It's time for the country to do what Obama's own father did.
Abandon him.
Posts: 6069 | From: Rocklin, Ca | Registered: Oct 2004
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N8
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Member # 6048
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posted
just updating..turned out to be the tfi....changed it and car fired right up. thanks gents!!
Posts: 11638 | Registered: Sep 2005
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