Car troubles.. help the noob..

[Marvin97]

Ok, so were on our way to the track tonight, going down the interstate at about 2200 rpm's, and we decide to get on it a little. I get close to 4,000 rpm's, and I can hear a little noise, I have heard it before and just thought it was in my exhaust. Can't really explain it, like a raspy, kinda loose rusty sound I guess. But, all of a sudden, my car starts bucking, and I can feel a loss of power. So I pull over, and it has a miss. Its very noticeable, and actually makes mar car seem to run louder than before. So, im probably 15 miles from home, and it is missing, but I go ahead and try and creep home. Surprisingly, above 2,000 rpm's, the miss is almost completely gone. Between 1,000 and 2,000 it bucks and misses like crazy and my car smokes out the exhaust noticeably. I pulled my plug wires and reset them, thinking maybe one had come loose, no change. Its dark out, I dont have a garage, and my little brother has my tools so I haven't been able to pull a plug yet. I changed the plugs when I got the car, about 3 months ago, and one plug had oil on it. Thing is, the oil was on the white insulator of the plug, and on the threads as well. It wasn't fouled out either, but didn't look far from it. I was told by a mechanic that since it was on the insulator, more than likely it was oil spilled on top of the plug when someone put oil in the car. But it was black as night. If it has oil on it, does this mean a bad valve? Need some help guys, any advice? I'm gonna pull a plug first chance I get and see what I can find..

 

[justinschmidt1]

you have any engine lights?

start with easy stuff first...make sure theres nothing loose...check all the hoses, connections around the TB and intake

If that doesnt fix it you may need to change spark plugs or even coils

 

[Marvin97]

I've had a check engine light since I bought it, but its o2 censors cause I don't have cats. I have a new question also: will 2000 model cobra heads swap onto my car? I know I would need a new intake, but is the swap possible? If I have a bad valve, im gonna swap out these heads.

 

[justinschmidt1]

I've had a check engine light since I bought it, but its o2 censors cause I don't have cats. I have a new question also: will 2000 model cobra heads swap onto my car? I know I would need a new intake, but is the swap possible? If I have a bad valve, im gonna swap out these heads.

gt=2 valve heads

cobras= 4 valve heads

no cobra heads wont swap onto your car.

Your probably better off buying a complete 4v engine and dropping it in.

 

[Marvin97]

Im not buyin a whole fkin motor over a miss.. that would be stupid. Like I said, i'll pull a plug tomorrow, maybe that same plug has been fouled out by a bad valve. If so, im gonna swap my heads. But im not just gonna buy a new motor..

 

[Willis_98GT]

trade your 4v heads and get some badass pi heads. :thumb:

 

[Marvin97]

Ok, so I went outside today and started the car, of course its still doing it. So to determine which plug it is, I shut it off, pulled the plug wire off the cylinder that had the bad plug before, and started the car. It ran just like it has been. So I narrowed it down to the cylinder. Interestingly enough, I go to put the plug wire on with the car started, and I can feel a small pricking pulse throught the plug boot. So I grab the wire further from the boot, and I get a pretty strong series of jolts through the insulation on my plug. Im still gonna pull the plug and see if its fuled or not, but I think I found my problem.

 

[9psi 98]

Try swapping out that plug wire that zapped you for another. Maybe it's arcing on the head and not through the plug like it's supposed to. That would account for the partially fouled plug in that cylinder also.

 

[8111870]

+1 on swapping that wire and see if that helps

 

[reivaxtorres]

I've had a check engine light since I bought it, but its o2 censors cause I don't have cats. I have a new question also: will 2000 model cobra heads swap onto my car? I know I would need a new intake, but is the swap possible? If I have a bad valve, im gonna swap out these heads.

gt=2 valve heads

cobras= 4 valve heads

no cobra heads wont swap onto your car.

Your probably better off buying a complete 4v engine and dropping it in.

dude, where are you getting this info? 4v heads will swap on a 2v block because the blocks are the exact same casting (as the windsor blocks anyways, slight differences on the romeo blocks, but that pretty much only involves clearance for the cobras forged crank) except one is cast iron (2v) and the other (4v) is aluminum.

the 2v to 4v head swap might be a little too much to deal with. you would need the heads, timing cover off a 99 cobra, throttle cables, cruise control cables, intake, intake manifold, throttle body, blah blah blah.you would also have to extend a few wires here and there, but other than that you can do the swap.

 

[jfor441]

I've had a check engine light since I bought it, but its o2 censors cause I don't have cats. I have a new question also: will 2000 model cobra heads swap onto my car? I know I would need a new intake, but is the swap possible? If I have a bad valve, im gonna swap out these heads.

gt=2 valve heads

cobras= 4 valve heads

no cobra heads wont swap onto your car.

Your probably better off buying a complete 4v engine and dropping it in.

dude, where are you getting this info? 4v heads will swap on a 2v block because the blocks are the exact same casting (as the windsor blocks anyways, slight differences on the romeo blocks, but that pretty much only involves clearance for the cobras forged crank) except one is cast iron (2v) and the other (4v) is aluminum.

the 2v to 4v head swap might be a little too much to deal with. you would need the heads, timing cover off a 99 cobra, throttle cables, cruise control cables, intake, intake manifold, throttle body, blah blah blah.you would also have to extend a few wires here and there, but other than that you can do the swap.

+1 Glad you posted that man... Was just about to say the same thing. Not a painful swap at all as long as you have everything there to do it with.

 

[Marvin97]

See, I had a hard time understanding why it wouldn't work myself, I thought, "why would the number of valves matter if im switching the whole head?" I figured he didn't know what he was talkin about, but wasn't sure enough to call BS. As for my problem today, I fixed it. It wasn't what I thought, I pulled my plugs, the previous problem plug was fine. Opposite the block of it though, I found a plug who had no gap to it. And it had gas on it. Got a screwdriver, gapped it, reinstalled it, purrs like a big ole kitty :thumb: Now I get to sit here and wonder how it got bent...

 

[Nater]

I have heard that if you have a bad detonation in the cylinder, it will collapse the gap.

 

[Bluesn95]

The 2v-4v swap is possible but I would have to sya that's you'd be better off finding a complete junkyard motor and selling your current motor.

 

[justinschmidt1]

I've had a check engine light since I bought it, but its o2 censors cause I don't have cats. I have a new question also: will 2000 model cobra heads swap onto my car? I know I would need a new intake, but is the swap possible? If I have a bad valve, im gonna swap out these heads.

gt=2 valve heads

cobras= 4 valve heads

no cobra heads wont swap onto your car.

Your probably better off buying a complete 4v engine and dropping it in.

dude, where are you getting this info? 4v heads will swap on a 2v block because the blocks are the exact same casting (as the windsor blocks anyways, slight differences on the romeo blocks, but that pretty much only involves clearance for the cobras forged crank) except one is cast iron (2v) and the other (4v) is aluminum.

the 2v to 4v head swap might be a little too much to deal with. you would need the heads, timing cover off a 99 cobra, throttle cables, cruise control cables, intake, intake manifold, throttle body, blah blah blah.you would also have to extend a few wires here and there, but other than that you can do the swap.

I've had a check engine light since I bought it, but its o2 censors cause I don't have cats. I have a new question also: will 2000 model cobra heads swap onto my car? I know I would need a new intake, but is the swap possible? If I have a bad valve, im gonna swap out these heads.

gt=2 valve heads

cobras= 4 valve heads

no cobra heads wont swap onto your car.

Your probably better off buying a complete 4v engine and dropping it in.

dude, where are you getting this info? 4v heads will swap on a 2v block because the blocks are the exact same casting (as the windsor blocks anyways, slight differences on the romeo blocks, but that pretty much only involves clearance for the cobras forged crank) except one is cast iron (2v) and the other (4v) is aluminum.

the 2v to 4v head swap might be a little too much to deal with. you would need the heads, timing cover off a 99 cobra, throttle cables, cruise control cables, intake, intake manifold, throttle body, blah blah blah.you would also have to extend a few wires here and there, but other than that you can do the swap.

+1 Glad you posted that man... Was just about to say the same thing. Not a painful swap at all as long as you have everything there to do it with.

See, I had a hard time understanding why it wouldn't work myself, I thought, "why would the number of valves matter if im switching the whole head?" I figured he didn't know what he was talkin about, but wasn't sure enough to call BS. As for my problem today, I fixed it. It wasn't what I thought, I pulled my plugs, the previous problem plug was fine. Opposite the block of it though, I found a plug who had no gap to it. And it had gas on it. Got a screwdriver, gapped it, reinstalled it, purrs like a big ole kitty :thumb: Now I get to sit here and wonder how it got bent...

I should have said it wasnt possible...but its not practical and you would be better off buying a complete 4v rather than swapping everything but your block.

You cant just throw a 4v head on your block without a bunch of other parts