throttle body problem
#1
throttle body problem
Ok...I've already posted about this problem, but I have decided its NOT the fuel injector cleaner thats making my gas mileage go to shit. I got my throttle body cleaned by my mechanic since I didn't have enough time to do it myself. I know that there are sensors in the TB, and I was wondering if having the cleaner sprayed on these can mess them up and affect the gas mileage on the car...I had heard something like that before but it didn't affect their gas mileage, just the idling and my car is idling fine. I have about 130 miles to a little under a half a tank, i usually get around 350 to a tank. HELP!
My poor car is always sick. I think it was problem-free for maybe 3 weeks out of the past 6 months I've had it. I still love her though
My poor car is always sick. I think it was problem-free for maybe 3 weeks out of the past 6 months I've had it. I still love her though
#2
Burning Brakes
Join Date: Mar 2003
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I've spayed mine out twice already and no problems(I drive the same 100mile round trip everyday and always calculate MPG when I fill up)
Is your air cleaner clean? or possibly damaged? the cotton or foam cleaners can get damaged during improper cleaning and basicly close-up,melt,whatever and you wouldnt know it.
Is your air cleaner clean? or possibly damaged? the cotton or foam cleaners can get damaged during improper cleaning and basicly close-up,melt,whatever and you wouldnt know it.
#3
Senior Moderator
i wouldnt clean my TB. it doesnt get dirty enough to reduce any thing. yes it will get black looking but thats all.
its possible that a sensor got damaged durring the cleaning. the other thing to think about is that gas stations are starting to use winter blends and the commonly reduce effiecency
its possible that a sensor got damaged durring the cleaning. the other thing to think about is that gas stations are starting to use winter blends and the commonly reduce effiecency
#4
Burning Brakes
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ya true dat on the winter blend, but many get sticky gas pedal or irratic idle which is caused many times by a T/B with build-up of the oil vapors coming thru the PCV into the intake hose.
#7
Smitty's Moral Police
Originally Posted by Tom Blasing
How many miles are on your O2 sensor?? If it's over 60k it's time to change it (the primary one).
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#8
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Originally Posted by Tom Blasing
How many miles are on your O2 sensor?? If it's over 60k it's time to change it (the primary one).
Is that a recommended change like you would do for the timing belt or something? I thought we only change them when they go bad.
#9
1999 Acura 3.2 TL
hmm, my gas pedal is hard to press on when it comes to a complete stop.. i have to add a bit more pressure than usual to get the pedal to accelerate.. and sometimes it won`t acclerate so i add more pressure and when it accelerates my car boosts so quickly, it doesn`t accelerate gradually, is this a case of the throttle body? also, my last full tank, i got 310.. is that good? 40% city 60% highway.. i fill up with Shell V-Power
#10
Burning Brakes
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Originally Posted by slikz
hmm, my gas pedal is hard to press on when it comes to a complete stop.. i have to add a bit more pressure than usual to get the pedal to accelerate.. and sometimes it won`t acclerate so i add more pressure and when it accelerates my car boosts so quickly, it doesn`t accelerate gradually, is this a case of the throttle body? also, my last full tank, i got 310.. is that good? 40% city 60% highway.. i fill up with Shell V-Power
BTW the sensors in the TB also get built up w/ this junk so instead of having the dealer replace them when they're clogged, clean them in the above proceedure.
#11
Originally Posted by hnhoj
Is that a recommended change like you would do for the timing belt or something? I thought we only change them when they go bad.
There really is no scheduled time to change an O2 but anything after 60k is usually borrowed time.
#12
A stuck TB could be a result of sticking plate inside the bore or the spring assembly on the outside. It happened to me 2 years ago. The gas padel wouldn't move and I had to apply more than usual force to get the car going at stop. Every time, the car lunged forward. I used lubricant on the springs assembly area and operated the TB by hand. After couple of spraying, the problem went away. If the area you drive in is quite dusty, gum and dirt would make your TB's spring to stick. That's at least is my experience. If that doesn't cure it, probably it's inside.
#13
1999 Acura 3.2 TL
Originally Posted by yield2s
hahaha ya man that IS your TB, no doubt! if you're a do-it-yourselfer then just go to the parts store and get a can of tb cleaner( I use "Valvoline synpower carb and tb cleaner") take off the rubber intake hose at the TB and look in there w/ a flashlight it'll be brown around the egdes of the butterflies. spray it and wipe/rub it all clean and there you go no more sticky pedal. This is tried and true method, dont worry, when you start her up it'll run rough for about 10secs but then it'll be perrrrrfect.
BTW the sensors in the TB also get built up w/ this junk so instead of having the dealer replace them when they're clogged, clean them in the above proceedure.
BTW the sensors in the TB also get built up w/ this junk so instead of having the dealer replace them when they're clogged, clean them in the above proceedure.
#14
Burning Brakes
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Is your cel lighting up? The reason I ask is I just replaced my TB due to a bad sensor. Buy a OBD II reader. They are about $100. If you get code P0122, it's your TB sensor and it is a warranty fix. The ensor is not replacable, you'll need a new TB.
#15
1999 Acura 3.2 TL
i just finished cleaning my TB, it was kind of hard taking off the big black hose connected from the air filter to the TB, but i managed ^_^ i used STP throttle body and intake cleaner, 2.85, =D well, the main purpose i cleaned the TB was because my gas pedal would kind of get stuck when i come to a complete stop (see above post).. so i cleaned it today, took a test drive, and the pedal is smooth when it came to a complete stop and then accelerate again.. but cleaning my TB should also improve my gas mileage, right? i`m also planning on buying a new air filter, the K&N ones.. would that also improve my gas mileage?
#16
Senior Moderator
Originally Posted by slikz
i just finished cleaning my TB, it was kind of hard taking off the big black hose connected from the air filter to the TB, but i managed ^_^ i used STP throttle body and intake cleaner, 2.85, =D well, the main purpose i cleaned the TB was because my gas pedal would kind of get stuck when i come to a complete stop (see above post).. so i cleaned it today, took a test drive, and the pedal is smooth when it came to a complete stop and then accelerate again.. but cleaning my TB should also improve my gas mileage, right? i`m also planning on buying a new air filter, the K&N ones.. would that also improve my gas mileage?
#19
Senior Moderator
Originally Posted by slikz
fuel injector cleaner, as in, those bottles where you pour in your car after filling it up with gas?
#20
1999 Acura 3.2 TL
alright, went to autozone today, bought a bottle of STP fuel injector and carburetor cleaner, it was a bottle for a 21 gallon tank. i filled up, 12.4 gallons, poured the whole bottle in there, now what? do i notice the difference right away? or it`ll take a couple of tanks? and do i do this every tank fill up? or just once in a while?
#21
Boomer SOONER
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Originally Posted by slikz
alright, went to autozone today, bought a bottle of STP fuel injector and carburetor cleaner, it was a bottle for a 21 gallon tank. i filled up, 12.4 gallons, poured the whole bottle in there, now what? do i notice the difference right away? or it`ll take a couple of tanks? and do i do this every tank fill up? or just once in a while?
You do that every once in a while, and you wont feel a thing really. I mean its more of a piece of mind doing and maintenance thing.
The K&N filter will help 1-2MPG on the highway, but not much at all in the city. And you may feel some improvement with it.
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