Suffocating at WOT!

[Ktorres1]

My troubles continue, thank god I love this car! I fixed my coil or spring problem with all new denso coils from drivewire.com, I have a new mach1 180 tstat in so overheating is now behind me. Now two days ago I woke up in the morning changed my oil and filter the took her for a spin. Everything felt fine untill I punch it at WOT and the car takes a split second to respond as it feels as if it's choking yet hesitent! I feel a serious loss of power like f I were towing a boat! Today I checked my plugs and replaced the coils like I said and it improved much. I'm thinking it could be a sensor having got damage by fluid and water spilling everywhere in my engine bay several times due to my bad burping procedures or my worst fear a cracked blocked form the serious overheat and the week without a tstat while cold in Florida! I'm headed to a shop to get it checked tommorow, please any hints or sense of direction is beyond appriciated!! Thanks to all in advance...

[Local Boy]

You can cast out the water everywhere theory...Probably, not...

As for the cracked block....Possibly...

But in senarios like this, it could be a number of other things...

What is your trans doing...?

What gear is it in...?

Tune?

Things like that...

Stay positive...

Aloha

[FordNut]

Like I said in the email...

If the oil & water aren't mixing and creating a foamy mess in the radiator or oil pan it is very unlikely the block is damaged.

First thing to try is take it back to stock, i.e. undo this: http://www.mercurymarauder.net/forums/showthread.php?t=60457

Sometimes it takes a tune for mods to really work.

[Local Boy]

^^^Bingo!...^^^

If... all was well before your install...

If you make many changes at the same time...it's difficult to pin down a problem...

So, you start from the begining...

Best of luck...

Aloha

[Ktorres1]

Sorry fordnut I never got your email, localboy as for the trans it is most noticable in first gear and when I punch it at WOT from from a higher gear it hesitates and doesn't flow smooth through the powerband! Also after the jlt install everything was strong and fine for about two days so I believe the intake worked as it shouldve but now it's all roar and much less flow!

[FordNut]

Check your spam filter for the email.

The computers in these cars have a "learn" function, it may have taken a couple of days to try and learn the new CAI and readjust itself. With different airflow characteristics it's possible that it learned something bad. Or maybe a hose came off or connector came unplugged. Easiest way to find out is to take it back to stock.

[Ktorres1]

Could it be a sensor?

[justbob]

Hmmmmm. Sounds just like mine.

[Ktorres1]

lol don't tell me dat bob! I thought yours was horrible but I guess it is horrible to only own a marauder chasis and not the performance at the touch of the pedal it's famous for!

[Local Boy]

Nah...It's not going to be a sensor...

For hesitation you generally look for...Air...Fuel...Spark...

Aloha

[Ktorres1]

I been testing the car outside and it's seems to be improving after disconecting the battery for a while and let it warm up and doin a couple launches now it's spinning the wheels at takeff again! I also find out dat my buddy who changed the psark plugs with me gapped them to .56 and we now regapped them to .52 but they are NGK irridiums and Werent supposed to be gapped because they came pregapped! Do you think this couldve slightly ruined them or maybe the no tstat for a week issue possibbly fouled one or so?

[Glenn]

In my opinion you can't bet the OEM Ford Motorcraft plugs and they are cheap. Gap them correctly. Only thing I run.

Glenn Ford :burnout:

[Ktorres1]

Are the o.e irridium? Because when I changed them I thought dey where, if not dats probally wat I'm goin to try next glenn! How much are they a piece?

[Ktorres1]

Also what gap size should I adjust it to?

[DOOM]

Stock plugs are copper and i believe are gapped at .54

[Ktorres1]

What is the reccomended gap?

[Local Boy]

Stock = .52 -- .56

Aloha

[FordNut]

Stock plugs are platinum. If you re-gap iridium plugs be very careful. The electrodes are very hard, brittle, and small so they can break easily. Follow the well-documented plug changing procedures or you may be replacing a cylinder head.

Disconnecting the battery returns the computer to "default" settings. It will re-learn after you drive it awhile and probably return to "all roar and no flow".

[tbone]

Did you clean the throttle body?

[fastblackmerc]

Is the MAF in the right direction?

[ctrlraven]

Never gap iridium plugs.

Check to make sure the MAF is plugged in and make sure anything else you have disconnected is connected good like the coils.

[Granite]

yeah...check ur MAF i left it unplugged once and it threw a code sputtered and stalled on me until i remember i had done that

[CBT]

yeah...check ur MAF i left it unplugged once and it threw a code sputtered and stalled on me until i remember i had done that
I made it about 500 feet once with MAF unplugged, luckily the plug didn't get damaged by the belt.

[Ktorres1]

Will do all of the above and give an update as the car has thrown on the check engine light and will be checked today!

[FordNut]

Will do all of the above and give an update as the car has thrown on the check engine light and will be checked today!

Was the CEL on when you initially posted? That's critical information and could have been helpful in trying to figure out your problem.

[Ktorres1]

No it wasent, it cut on today morning while driving to work.

[FordNut]

No it wasent, it cut on today morning while driving to work.

You could stop by Advance Auto or AutoZone and get them to read the code, that may help figure out what's wrong.

[Ktorres1]

Alrite so I went to autozone and I had a misfire on cylinder 6, I bought a new spark plug and erased the code. I go on the highway and the check light comes on! I take it back and it reads misfire on cylinder 6 again! I change the coil, erase the code and assume all is well. I'm on the highway again it's ridind much stronger and better when I pass a 100 mph and the check light comes on again in the same blinking fashion as before then disappears! I'm goin back tommorow to have it rechecked...

[Ktorres1]

Can someone tell me exactly which one is cylinder 6 on the marauder?

[-Matt-]

Can someone tell me exactly which one is cylinder 6 on the marauder?

Pass side... second from last

[-Matt-]

http://upload.wikimedia.org/wikipedia/commons/9/95/V-engine-cylnum-1.png


Firing order: 1-3-7-2-6-5-4-8

[Ktorres1]

Well dat explains it, I changed 5 instead of 6! The autoparts guys had it backwards, twice they told me the opposite of what you just confirmed Matt! Thanks alot Ima go back tommorow and give it another try! Also I really appriciate all the support adn advice as nobody else gives a damn as I tell tell them to go to hell, it's the greatest car in da world lol thanks again! Will be back with update...

[massacre]

This happens sometimes because the SBC and other motors have the #1 cylinder on the driver's side front.
What scares me is that the guy with the scanner didn't know....lol

[FordNut]

Pass side... second from last


http://upload.wikimedia.org/wikipedia/commons/9/95/V-engine-cylnum-1.png



I thought it was like this:

Rear
4 .. 8
3 .. 7
2 .. 6
1 .. 5
Front

6 would be second cylinder on driver's side.

[Ktorres1]

Now I'm getting confused! I need to know for sure before I go through this again today! ?????

[-Matt-]

Im not sure, thats what came up for Mod motor cyl numbers? I may be wrong.

[Ktorres1]

Well let's see what fordnut has to say?

[FordNut]

Well let's see what fordnut has to say?

Every Ford I'm familiar with does it like this VVV


I thought it was like this:

Rear
4 .. 8
3 .. 7
2 .. 6
1 .. 5
Front

6 would be second cylinder on driver's side.

[Ktorres1]

What should I do??

[justbob]

I always read about the rear two cylinders going bad and often related to 7&8?

[justbob]

A couple quick searches describes it as what Fordnut said.

[Ktorres1]

I will try this and give update, thanks!!!

[massacre]

FordNut is correct.

#1 is pass side front, #8 is driver's side rear.

[-Matt-]

I guess my picture was chevy motor then?

[FordNut]

I guess my picture was chevy motor then?

I think so.

[Joe Walsh]

Every Ford I'm familiar with does it like this VVV

+1

That's the only way I've ever seen Ford V8s...SMF and BBF.

[Ktorres1]

Well it had to be the way because i changed the plug and coil on dat cylinder now my power is back!!!! Wowww how I missed it! Ima give it a couple days while my fingers are crossed, thanks to everyone that took there time to give there expertise....