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Old 02-24-2012, 12:47 PM   #141
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Re: 91 5.0 Mostly Stock

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Okay, so probably Fuel pressure regulator then.

---------- Post added at 11:22 AM ---------- Previous post was at 11:06 AM ----------

There seems to be a segregate sort of box in the fuel tank when I look in to it. The fuel pump needs to sit in there right?
Yes, that keeps the fuel from sloshing away from the pump.
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Old 02-24-2012, 06:41 PM   #142
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changed fuel pressure regulator, no joy. When I sorted starting fluid in the throttle body she fired right up though. Going to check for linked fuel line and clogged filter. In neither of those going back in yo the fuel tank.
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Old 02-24-2012, 06:43 PM   #143
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at least your getting it narrowed down.its definatley a fuel problem.now u just have to figure it out.did this start right when u changed the pump?
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Old 02-24-2012, 06:47 PM   #144
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Well sort of. I put new head gaskets on and everything that goes with that pulse a bunch of other things like the starter. Then I installed an On3 turbo kit with 42lb injectors, chip etc... Then the fuel pump and now I'm in the stage of simply getting the car running. Yes, I am definitely narrowing it down. Not much left to replace.
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Old 02-24-2012, 07:06 PM   #145
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the fuel pump just seems pretty suspicious.did you ever contact on3?im sure the could give you some pointers also.
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Old 02-24-2012, 07:44 PM   #146
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Yeah, it's not likely I kinked a line, but the fuel
pump kicks on to prime when I turn the key.

---------- Post added at 07:44 PM ---------- Previous post was at 07:18 PM ----------

Are you thinking the pump may have been defective?
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Old 02-24-2012, 08:08 PM   #147
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when you say the line to the reg has fuel,do you mean there is fuel in the line?or do you mean you checked pressure and or pulled the line off and turned the key on to watch it flow?and you checked fuel pressure,cause i dont recall you saying?also start at the motor and pull a line,put it in a bucket and prime the pump.make sure the fuel is flowing.then i believe u have a rubber flex line back by the tank.you can do the same there.that will help you located where the fuel problem is.if you pull the line by the tank,and have someone turn the key on the fuel should flow into the bucket.if it dont then you will need to drop the tank.

---------- Post added at 08:08 PM ---------- Previous post was at 08:02 PM ----------

i would hate to state the obvious but there is fuel in the tank? the reason i ask is cause maybe you were low and the new pump has a little bit shorter pickup tubes?
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Old 02-24-2012, 08:17 PM   #148
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Haha, I thought that also so I added five gallons

---------- Post added at 08:17 PM ---------- Previous post was at 08:09 PM ----------

Pressure was almost nothing but there was fuel in one of the two lines.
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Old 02-24-2012, 08:21 PM   #149
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Yeah,you need to pull the line by the tank and see if you got flow there.
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Old 02-24-2012, 08:22 PM   #150
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Will do, probably tomorrow.
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Old 02-24-2012, 09:15 PM   #151
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Re: 91 5.0 Mostly Stock

Keep it up, your ease of install and other trouble-shooting problems are influencing my decision to buy! Dont hesitate to say anything either please!
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Old 02-24-2012, 09:23 PM   #152
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Re: 91 5.0 Mostly Stock

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Keep it up, your ease of install and other trouble-shooting problems are influencing my decision to buy! Dont hesitate to say anything either please!
Meaning?
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Old 02-24-2012, 09:27 PM   #153
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Yeah, I'm happy so far with the progress. The problems I'm having are minor in my opinion. I am also not a mechanic. I have never done anything like this. So far I've used this forum, Google, Chilton and YouTube to do all of this. If my car runs anyone can do this.
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Old 02-24-2012, 09:46 PM   #154
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Re: 91 5.0 Mostly Stock

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Meaning?
meaning im looking to buy and if he's had a troublesome time with it/ not happy with the performance outcome then I wont buy.

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Yeah, I'm happy so far with the progress. The problems I'm having are minor in my opinion. I am also not a mechanic. I have never done anything like this. So far I've used this forum, Google, Chilton and YouTube to do all of this. If my car runs anyone can do this.
I have alot of mechancially inclined friends but i'm afraid of downtime. My fox is my daily and hence it can only be down for two days max! Thanks again for posting all problems so far, I look forward to hearing how you cant wipe the grin off of your face though either!
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Old 02-24-2012, 09:48 PM   #155
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Haha yeah, well two days is about right for the turbo install, but the heavy duty head gaskets took me three to four days by themselves.
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Old 02-24-2012, 09:58 PM   #156
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Re: 91 5.0 Mostly Stock

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meaning im looking to buy and if he's had a troublesome time with it/ not happy with the performance outcome then I wont buy.



I have alot of mechancially inclined friends but i'm afraid of downtime. My fox is my daily and hence it can only be down for two days max! Thanks again for posting all problems so far, I look forward to hearing how you cant wipe the grin off of your face though either!
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Haha yeah, well two days is about right for the turbo install, but the heavy duty head gaskets took me three to four days by themselves.
I see.
Take everything with a grain of salt though, as installation issues and experiences are known to widely vary depending upon vehicle differences, installer experience, etc., etc..


As an example, I am relatively at ease with anything mechanical, but a stereo system has been known to give me fits.
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Old 02-26-2012, 04:46 PM   #157
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Got it running, went for test drive. Runs very hot(new radiator and thermostat and water pump) Died two miles from my house won't start again
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Old 02-26-2012, 06:47 PM   #158
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so what ended up being the being the original problem?

was it running hot before and how hot did it get?

make sure you got the right water pump.early models are opposite rotation than newer models.also make sure you have the thermostat in right also.

what fan are you running?and is it shrouded?
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Old 02-26-2012, 07:24 PM   #159
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Haha, after all I the replaced parts it was a kinked fuel line at the gas tank.

The water pump is the correct one, someone else mentioned that.

The radiator is new and the thermostat is from napa and I'm 99% sure it was installed correctly. Maybe I should pull it off

Very hot 270- max temp on my gage.

Never did that before.

---------- Post added at 07:22 PM ---------- Previous post was at 07:21 PM ----------

I have a stock replacement fan with new clutch- yea it is shrouded.

---------- Post added at 07:24 PM ---------- Previous post was at 07:22 PM ----------

Right before it died it was driving fine then backfired a couple of times. I slowed down to pull over and the radiator overflow split antifreeze everywhere and the car died.
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Old 02-26-2012, 07:30 PM   #160
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you set your base timing at 10* with the previous problem u were having?timing can cause it to overheat also.you may also try a high flow thermostat.dont change the temp on it though.
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Old 02-26-2012, 07:46 PM   #161
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Okay, I will double check. My timing may be a bit higher than 10, I will also get the thermostat.

---------- Post added at 07:46 PM ---------- Previous post was at 07:44 PM ----------

Well now the car won't start, so I'm not sure what to do.
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Old 02-26-2012, 07:49 PM   #162
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i would be care full running more than 10 unless your turbo supplier recommends it.to much timing with a turbo can be very bad and can even kill your motor.its so important that your chip they sent you will probably actually pull timing away at higher rpms.if you have higher than they recommend then what they are suppose to be pulling out is still actually there.but i cant be sure what they recommend so i would stick with 10* unless you know for sure its ok to go more.
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Old 02-26-2012, 07:51 PM   #163
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To be honest at this point this is beyond my skill level. I can't get the car to start again. gonna have it towed to a tuner and see if they can get it running and tune it properly.
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Old 02-26-2012, 07:54 PM   #164
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thats probably a good idea.it will run best after you get it tuned proffesionally anyways.

---------- Post added at 07:54 PM ---------- Previous post was at 07:53 PM ----------

good luck.and hopefully nothing major got damaged!
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Old 02-26-2012, 07:54 PM   #165
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Yeah, I hope nothing's too broken.
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Old 02-26-2012, 07:57 PM   #166
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did you hear any signs of detonation?not trying to scare you or anything but if your cylinders where really hot it may have cause some detonation
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Old 02-26-2012, 08:05 PM   #167
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I don't know what that sounds like, it backfired twice in about four seconds. I then turned the car off and headed for the side of the road.
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Old 02-26-2012, 08:07 PM   #168
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it can be described like marbles boucing around.a backfire is different.it probably just did that cause it was hot but not sure.if ou can still turn the motor over by hand then and then im sure its ok.i doubt in that short of a drive you would burned up a piston or anything.but im no expert either.
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Old 02-26-2012, 08:09 PM   #169
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Oh no marbles. Just the backfire then I shut it off and was unable to restart.

---------- Post added at 08:09 PM ---------- Previous post was at 08:08 PM ----------

I'm sure a local speed shop can get it running, tuned and ready to
go for me in no time.
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Old 02-26-2012, 08:11 PM   #170
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i wouldnt mess with it till your tuner checks it out to be safe.that sux man!you put in all that hard work and now have to take it in.

---------- Post added at 08:11 PM ---------- Previous post was at 08:10 PM ----------

yeah they will get it im sure.it may even make a little extra ponies when they are done.
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Old 02-26-2012, 08:13 PM   #171
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Yeah, I'm in to this project or about 8k and I took off of work for nine days and all I want to do is drive the car a bit. Can't catch a break.
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Old 02-26-2012, 08:17 PM   #172
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i hear you.i just spent about 2700 in upgrades.got it all in and running great.i just got to button up a few things.then my main water line 6' under ground breaks!i had to rent a back hoe to fix. while my stang just sits there.

i bet it will be all worth it when you have that big smile on your face while romping the throttle when there all done.
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Old 02-26-2012, 08:19 PM   #173
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Haha, you too. Sorry to hear about the water line that sucks. Do you live somewhere cold with frozen ground?
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Old 02-26-2012, 08:24 PM   #174
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its cold but the ground wasnt frozen.the back hoe cost 300$ for 1 day.it did the job though.i had a 6'x6'x6' hole to get to it.now half my back yard is trashed.oh well.at least it didnt snow!lol
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Old 02-26-2012, 08:28 PM   #175
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Haha yeah!
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