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Throttle issue, need the crews help #31715 Jul 29, 10:59am Jul 29, 10:59am
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Throttle issue, need the crews help
I will do my best to explain this, its a feel thing so hope this will be clear. First the car in question: 2003 GT, stick, 15,000 miles. Second recent work done: changed oil from 5w30 to 10w30 and had belt and tensioner replaced.
I should note that I noticed this before the belt change.

The problem: at 4000 to 5000 rpm (80 to 90 mph) the throttle feels a little hard to push in (only a little) and there is almost a friction or crunchy feel. This only happens at high speeds and I only really noticed it the last two days. Also there is this feeling like there is a lot of drag coming from something, I feel like I'm dragging a dead body at these speeds.

She has always been a little crazy at high speed (what do you want from a 4 cyl), but this seems odd. It could all be in my mind but I would like your advice.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31716 Jul 29, 11:25am Jul 29, 11:25am
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Well, I've never experienced anything like this so I have no idea confused

Re: Throttle issue, need the crews help [Re: Gen7fan] #31717 Jul 29, 11:29am Jul 29, 11:29am
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Originally Posted by Gen7fan
. Also there is this feeling like there is a lot of drag coming from something, I feel like I'm dragging a dead body at these speeds.


scary quote + scary avatar...freaky sounding shit.

but ya sorry no clue...i have 2002 GT stick, never had that problem.

try the dealer?

Re: Throttle issue, need the crews help [Re: Gen7fan] #31718 Jul 29, 11:50am Jul 29, 11:50am
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If it feels like the pedal has friction, your throttle cable may be offline and when you got your belt replaced they might of knocked it worse. Take off your passenger side engine plasic (big one) there will be a little black cover that looks like an upsidedown cup. Pull that off and look at your throttle, see if there is anything obtrusive on it or if it's not exactly online. If not PM me and I'll check into some other possibilities

Re: Throttle issue, need the crews help [Re: PhatCellyGt] #31719 Jul 29, 11:52am Jul 29, 11:52am
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Will do, I'll let you know what I find. Big Ass Thanks thumbsup

Re: Throttle issue, need the crews help [Re: Gen7fan] #31720 Jul 29, 1:32pm Jul 29, 1:32pm
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Yea, check the throttle cable. Also, check the body itself. Make sure its opening and closing properly. It only does it at high speeds, or all time in that rpm range? Could you be at idle and make it do it? If so, have a buddy rev it up while you check under the Hood. Try that and check out those things. Post back your results.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31721 Jul 29, 1:40pm Jul 29, 1:40pm
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I will check the cable, and yes it only feels this way at high speeds. She is tip top right up until about 80 mph.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31722 Jul 29, 1:51pm Jul 29, 1:51pm
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This is very interesting. I have never heard of this problem before. It is sill under warranty. Go get it checked out.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31723 Jul 29, 2:18pm Jul 29, 2:18pm
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I want to see what I can see and then I will take it in to them. I wonder what the service guy will say when I tell him my problem is at 80 and 90mph, hahaha.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31724 Jul 29, 3:19pm Jul 29, 3:19pm
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Rave669
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Okay dude, THat crunchy feel is probably because of two things:

1) the cable needs to be lubricated. there is a special tool that allows you to shoot grease into the cable sleeve with the cable still installed. this may fix your problem altogether, and the dealership can do it for you, or, you can get the tool from an auto parts shop and do it yourself (you'll also need a grease gun & some lithium grease)... unless of course...

2) your throttle cable is beginning to fray, or come unraveled somewhere, in which case, you should replace the entire throttle calbe.

Other areas to check out would be the throttle rotator on the throttle body (the little "half-moon" shaped wheel your throttle cable goes to), it may be bent a little, or, the springs on the rotator may be cracking. also be sure to inspect the ends of the cable. both at the pedal & TB. make sure it's all in good health.

You may want to clean your Intake manifols and throttle body with throttle body & MAF cleaner spray (STP and others make this, available at auto parts stores) this will clean out carbon sludge, and you may restore some of that power, clean the MAF while you're at it; be sure to read the instructions for use on the can, it's real important. that may also be why the throttle is hard to manipulate; if the TB butterfly is all gummed up, cleaning it may help.

Odds are, you just need to clean up the Intake tract a bit, and lube the throttle cable.

BTW: one more thing... This may sound stupid, but honestly, this happened to me, and you'll slap yourself if it happens to you too.

I recently put an additional set of plasticolor mats in my GTS, to keep from wrecking the factory mats at the car wash, or when wrencing on it. I use them daily to keep my interior clean.

I noticed the car wouldn't accelerate as fast as it used to, and the lift didn't engage as easily.

I was able to get up to 100 on the interstate, but from there, the car just crawled. I couldn't figure it out for the life of me, then it hit me... My new floormats were taller than the stock ones, and the accelerator pedal, well, it has almost no clearance between the floorboard and the bottom of the pedal when it's floored. my new mat was geting in the way of the pedal's full travel (the mat is only like 1/2" thick).
I slid the mat back, and under the front seat a little, so the top of the mat was level with the factory mat (notice, it's cut out by the gas pedal?). suprise, suprise, it fixed the problem.

Sometimes the solution is so simple, you fail to realize it immediately.



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Re: Throttle issue, need the crews help [Re: Gen7fan] #31725 Jul 29, 5:57pm Jul 29, 5:57pm
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I have to agree that the throttle cable and body need to be checked...something would be interfering when it is opened or moved to that certain point when the gas is pressed...check them out.


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Re: Throttle issue, need the crews help [Re: Gen7fan] #31726 Jul 30, 8:14am Jul 30, 8:14am
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Well I'm an asshole! I did check the throttle body and the whole 9 yards. Shes fine, every thing is in place lubed up and lookin like the day I bought her. I'm an asshole because its my shoes. Up until two days ago I have alway had boots on when I drive her (docs, grinders, tanks), but I had my airwalks on the last two days. Point is I'm feeling the vibration that I have never felt before.

But you guys are great, on point with all your help. I can't thank you enough for the effort. Thank You.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31727 Jul 30, 8:21am Jul 30, 8:21am
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Originally Posted by Gen7fan
Well I'm an asshole! I did check the throttle body and the whole 9 yards. Shes fine, every thing is in place lubed up and lookin like the day I bought her. I'm an asshole because its my shoes. Up until two days ago I have alway had boots on when I drive her (docs, grinders, tanks), but I had my airwalks on the last two days. Point is I'm feeling the vibration that I have never felt before.

But you guys are great, on point with all your help. I can't thank you enough for the effort. Thank You.




lollol lollol lollol ... you so funny ... hehehehehe

Nice one, I can't even drive in boots.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31728 Jul 30, 8:23am Jul 30, 8:23am
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element_celica
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uhhhh??
i have an 03 gts, but i thought all the 03 celi's had the electronic throttle? correct me if i'm wrong here


rip celi...
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Re: Throttle issue, need the crews help [Re: Gen7fan] #31729 Jul 30, 8:23am Jul 30, 8:23am
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yeah, I'm a tool.

Re: Throttle issue, need the crews help [Re: Gen7fan] #31730 Jul 30, 4:30pm Jul 30, 4:30pm
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Don't feel bad, we all miss the stupid little things that cause issues from time to time. It also tends to get a little personal, 'cause we all tend to be a bit anal about our cars as well, and every little issue tends to become larger than life.

Glad I could help smile


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Re: Throttle issue, need the crews help [Re: element_celica] #31731 Jul 31, 8:48am Jul 31, 8:48am
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Originally Posted by element_celica
uhhhh??
i have an 03 gts, but i thought all the 03 celi's had the electronic throttle? correct me if i'm wrong here



Corrected, your wrong. grin

Re: Throttle issue, need the crews help [Re: Rave669] #31732 Jul 31, 8:49am Jul 31, 8:49am
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Originally Posted by Rave669
Don't feel bad, we all miss the stupid little things that cause issues from time to time. It also tends to get a little personal, 'cause we all tend to be a bit anal about our cars as well, and every little issue tends to become larger than life.

Glad I could help smile



Thanks buddy! grin rice

Re: Throttle issue, need the crews help [Re: Gen7fan] #31733 Jul 31, 9:01am Jul 31, 9:01am
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I thought the 03 Celica has "fly-by-wire" throttle ? confused


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