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Subway's GT: Time to close my legs, it smells everywhere

Re: Meatball Sub with Pickles

the extensions get you over the top of the intake, theres not enough room to work a wrench down there. you may need a pipe on the ratchet to crack it free, i did, so having the ratchet over the top of the intake was key.
 


Re: Meatball Sub with Pickles

ScottyDoggs said:
the extensions get you over the top of the intake, theres not enough room to work a wrench down there. you may need a pipe on the ratchet to crack it free, i did, so having the ratchet over the top of the intake was key.
Click to expand...

I've got a 3/8" and 1/2" breaker bar, will those be any help? And also a pipe for more leverage.
 
Re: Meatball Sub with Pickles

Random thoughts:

I usually have to use a combo wrench for an 02 sensor. For extra leverage I hook a long reach box end on the open end of the first wrench. But I've never had my front one out though. PB blaster first if it looks cruddy.

Rocking the engine forward can hurt your exh flex joint.

Thread name change would involve editing the original post, simple. Unless somebody locked that somehow where you can't alter it.

DIC lies about MPG, but a drop in your avg # can mean the engine isn't completely happy. I've switched to using good gas and no additives, seems to work.
 
Re: Meatball Sub with Pickles

idrivejunk said:
Random thoughts:

I usually have to use a combo wrench for an 02 sensor. For extra leverage I hook a long reach box end on the open end of the first wrench. But I've never had my front one out though. PB blaster first if it looks cruddy.

Rocking the engine forward can hurt your exh flex joint.

Thread name change would involve editing the original post, simple. Unless somebody locked that somehow where you can't alter it.

DIC lies about MPG, but a drop in your avg # can mean the engine isn't completely happy. I've switched to using good gas and no additives, seems to work.
Click to expand...

Got the title changed, thanks Matt! As fas as the MPG goes, If I reset mine and then get it up to 20.0mpg and then come to a stop or idle for a minute. It will drop down like 0.1mpg every 10 seconds. It goes down quick if I'm not moving. My air filter is dirty and needs replacing, will that cause that sharp of a drop in MPG? I wouldn't think so. Someone told me awhile back that these cars suck gas at idle.
 
Re: Meatball Sub with Pickles

I needed a laugh, thanks. In each post, the title of the thread at time of posting will be displayed. Spicy mustard is good on those sandwiches, but not pickles.

If reset recently, yeah the DIC doesn't have much to average so yeah idling drops the number fast. Never reset it and it almost never changes. Thats what I do, and if I see a change of 1 MPG I know its time to peek around under the hood and find the vacuum leak lol.

You will find that the DIC tends to be optomistic and shows an exrta couple MPG most of the time. I've been driving these cars since 2009 and have noticed a few things lol.
 
Re: Meatball Sub with Pickles

Your air filter would have to be REALLY clogged... and still would not affect MPG at idle. Nothing will , everything gets 0 MPG sitting still. If it were that bad, you'd notice the poor performance before the mileage.
 


Re: Meatball Sub with Pickles

idrivejunk said:
I needed a laugh, thanks. In each post, the title of the thread at time of posting will be displayed. Spicy mustard is good on those sandwiches, but not pickles.

If reset recently, yeah the DIC doesn't have much to average so yeah idling drops the number fast. Never reset it and it almost never changes. Thats what I do, and if I see a change of 1 MPG I know its time to peek around under the hood and find the vacuum leak lol.

You will find that the DIC tends to be optomistic and shows an exrta couple MPG most of the time. I've been driving these cars since 2009 and have noticed a few things lol.
Click to expand...

Well I haven't even hit 50 miles yet, and the gas needle is almost at the 3/4 full mark....... I can try changing the 02 sensor and if that doesn't change anything, I'm stumped as to why I get such poor gas mileage. One day, I got 12mpg. Not acceptable.
 
Re: Meatball Sub with Pickles

idrivejunk said:
Your air filter would have to be REALLY clogged... and still would not affect MPG at idle. Nothing will , everything gets 0 MPG sitting still. If it were that bad, you'd notice the poor performance before the mileage.
Click to expand...

I've never driven another GP so I don't really know what poor performance in these cars feel like. I mean, I think it's pretty quick, but I don't know. I had the car scanned and nothing showed up. I don't think my thermostat will affect my MPG that much.
 
Re: Meatball Sub with Pickles

My school has a really nice scanner. I'm betting it can read fuel consumption. I will hook it up and see what's going on.
 
Re: Jared's 2001 GT

SPRING TO-DO LIST:

1. Patch the front bumper and paint it black as well as rear bumper
2. Add quad exhaust tips
3. Replace, or fix up the passenger fender
4. Buy a color matched license plate cover and add a black inlay
5. Add color matched inlays to the door sills.
6. Slightly tint the tail lights and add clear corner lights
7. Maybe get LE fog lights or tint my current ones
8. And probably a SLP knockoff spoiler from RA lol, but that's only if I have some spare cash sitting around

Gotta make the car look nice for June 25th ;).
 
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Re: Meatball Sub with Pickles

StayFree said:
Well I haven't even hit 50 miles yet, and the gas needle is almost at the 3/4 full mark....... I can try changing the 02 sensor and if that doesn't change anything, I'm stumped as to why I get such poor gas mileage. One day, I got 12mpg. Not acceptable.
Click to expand...

Yea I noticed after switching to Shell premium gas, that I gotta go like 100 miles before the needle moves off full. 12 MPG would be a red flag, yes! If the car has a vacuum leak, unmetered air is ingested and that rear O2 sees a lean condition so the computer thinks it should dump in more fuel. I'm no mechanic. But it sure does help to have another similar vehicle around, for many reasons. Performance can taper off gradually without being noticed until its fairly drastic.
 


Re: Meatball Sub with Pickles

idrivejunk said:
Yea I noticed after switching to Shell premium gas, that I gotta go like 100 miles before the needle moves off full. 12 MPG would be a red flag, yes! If the car has a vacuum leak, unmetered air is ingested and that rear O2 sees a lean condition so the computer thinks it should dump in more fuel. I'm no mechanic. But it sure does help to have another similar vehicle around, for many reasons. Performance can taper off gradually without being noticed until its fairly drastic.
Click to expand...

That 12mpg mostly resulted from sitting in the school parking lot waiting to leave, still doesn't seem right. I can try spraying carb cleaner around areas and listening for a idle change. Other than the UIM and LIM areas, are there any other common fail points where a big vacuum leak occurs?
 
Re: Jared's 2001 GT

i went on a 200 mile trip all hwy, got 26-28 avg. since i got back over a week ago now, i filled the tank back up and the avg is now 19.3 driving all local for th elast week, ive drank a 1/4 tank of gas already from the full tank. another week it should be back to 14 i guess.
 
Re: Jared's 2001 GT

ScottyDoggs said:
i went on a 200 mile trip all hwy, got 26-28 avg. since i got back over a week ago now, i filled the tank back up and the avg is now 19.3 driving all local for th elast week, ive drank a 1/4 tank of gas already from the full tank. another week it should be back to 14 i guess.
Click to expand...

I really wish it wasn't average MPG and was current MPG. To me, I'd rather know what I'm getting at the moment, than an average of what I drove. That's why I've been resetting it every day.
 


Re: Meatball Sub with Pickles

StayFree said:
That 12mpg mostly resulted from sitting in the school parking lot waiting to leave, still doesn't seem right. I can try spraying carb cleaner around areas and listening for a idle change. Other than the UIM and LIM areas, are there any other common fail points where a big vacuum leak occurs?
Click to expand...

On my GT I replaced the entire "fuel pressure regulator harness", I think thats what its called. Was looking, I know I had a pic. Its all the piping and connectors as an assembly from GM, that goes on top of the engine. The potential failure points on that alone are numerous. If you have access to a vacuum gauge we could compare readings at idle for kicks. Might reveal something.

The MPG on the DIC is lies like everything else, pretend it isn't there.
 
Re: Meatball Sub with Pickles

idrivejunk said:
On my GT I replaced the entire "fuel pressure regulator harness", I think thats what its called. Was looking, I know I had a pic. Its all the piping and connectors as an assembly from GM, that goes on top of the engine. The potential failure points on that alone are numerous. If you have access to a vacuum gauge we could compare readings at idle for kicks. Might reveal something.

The MPG on the DIC is lies like everything else, pretend it isn't there.
Click to expand...

No access to a vacuum gauge. But as Scotty told me before, my fuel pressure regulator is displaying signs that it is bad. Upon initial startup, the car will crank for like 1 or 2 seconds and fire up. Once it fires up, there is avery strong fuel smell. Also the vacuum hose coming off the FPR smells of gas. But that hose was off a JY car so not 100% on that.
 
Re: Jared's 2001 GT

Get the FPR swapped before it blows your car up. Because.. it allows fuel into the intake manifold and all it takes is one little spark.. BLAM the intake is going to be a fireball. Seen it.. it's bad.

As for your fuel mileage, the problems are the type of driving you do (sounds like all around town) and your right foot. There's a reason fast starts are discouraged by tree huggers. By driving the way you are now.. you'll likely get much better.

Plus..your math sucks. If you are getting approximately 200 miles on a tank and you are only putting in 13 gallons that's 15mpg roughly. Which still sucks. I'd also bet you are using regular, not super. If you have knock stock.. which most do and you drive it hard, you'll be on the low octane timing tables and that robs you of mpg as well.
 
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