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1996 Cadillac Seville STS
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535 Posts
Discussion Starter #1
Well guys I don't post much but last time I posted it was on the matter of my accelerator locking and me not being able to accelerate and having it to press down really hard and reving the engine up. I also received some very vague advice, which was, "search for throttle body" and unfortunately that didn't help very much seeing as there are thousands of posts containing those two words alone.

Now if you guys could please help me figure this out I'd appreciate it. I got a new air filter and my old problem of "Service Emmissions System" <(which would show up when my accelerator locked) went away, but ever since then it only came back once. Do you guys have any solutions? What is the problem? I'm asking because, thanks to that advice, I never got that fixed and I almost wrecked horrible once because of that, the brake locked, the accelerator, and the steering wheel, so any help would be greatly appreciated.

Also, when I go up past 65 mph, and finally decelerate to the speed limit :)shhh: ) I get the "Service Transmission" message...I don't know why my Caddy has problems being in those gears...also, I need some refrigerant soon, what is some good refrigerant?

Sorry for the bombardment of questions, just wanna keep my car nice...btw I have a 96 STS...thanks ....

Peace
 

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Cadillac Owners Connoisseur
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1,164 Posts
SL1CK said:
Well guys I don't post much but last time I posted it was on the matter of my accelerator locking and me not being able to accelerate and having it to press down really hard and reving the engine up. I also received some very vague advice, which was, "search for throttle body" and unfortunately that didn't help very much seeing as there are thousands of posts containing those two words alone.

Now if you guys could please help me figure this out I'd appreciate it. I got a new air filter and my old problem of "Service Emmissions System" <(which would show up when my accelerator locked) went away, but ever since then it only came back once. Do you guys have any solutions? What is the problem? I'm asking because, thanks to that advice, I never got that fixed and I almost wrecked horrible once because of that, the brake locked, the accelerator, and the steering wheel, so any help would be greatly appreciated.

Also, when I go up past 65 mph, and finally decelerate to the speed limit :)shhh: ) I get the "Service Transmission" message...I don't know why my Caddy has problems being in those gears...also, I need some refrigerant soon, what is some good refrigerant?

Sorry for the bombardment of questions, just wanna keep my car nice...btw I have a 96 STS...thanks ....

Peace
You should check and post the codes here so we can tell if there are electrical issues or electrically-detected mechanical failures. It sounds like there are a multitude of issues that need to be resolved and there is no single answer that will help you with everything.

It does sound like you need to clean the throttle body. You need some carb cleaner and a rag. Loosen the screw clamp on the air intake hose, unplug the connector on the air box, and remove the entire air cleaner and hose. There are three bolts that hold the MAF on (the part with the metal screen on it). Remove those three bolts, unplug the MAF, and remove it. Open the throttle blade by hand (push on the top half) and spray it down with carb cleaner. Use the rag and scrub the deposits off the throttle blade, around the circumference of it, and around the bore of the throttle body. Just keep spraying and wiping until you clean up everything in the area where the throttle blade sits. When it's all clean, put the MAF and air cleaner back and you're done.
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,781 Posts
I agree with Mcowden. Clean that TB and you'll likely solve you accelerator problem. You may also need to pull and clean the EGR valve but the codes should tell you if that is what is causing the service emission system message.

I think almost any refrigerant is ok but do not use one with a sealant in it. Just plain old R134a.
 
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