d15b2 sticky throttle? when warm
04-19-2007, 07:05 PM
#1
Member
Thread Starter
Join Date: Feb 2006
Location: ontario
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
d15b2 sticky throttle? when warm
k so i just swapped out my old d15b2 for another lower mileage d15b2.. now the issue is that once the engine warms up the throttle becomes sticky? like when i push the clutch in with my foot off the gas the rpm's will continue to climb, but if i place my foot under the gas pedal and pull back they will drop right back to what they should be, until i hit the gas again. now this only does this when the car is warm. i have tried a can of throttle body cleaner, and drenched any moving parts in lubricant but no improvement (thought it was just sticky throttle linkage), all fluids are at correct heights. now i do still have most parts from the old engine but trashed the block so i could use some parts from that if needed but that engine got worse gas mileage so i wont to limit the amount of parts coming over from that engine. anyways im sorry if this has been discussed somewhere else but i tried a search and haven't found anything yet, so if you know of a post please direct me to it. but once again any help would be greatly appreciated cuz it sorta scary when i let off the gas and i start to accelerate
04-19-2007, 10:50 PM
#3
Automotive Technician
Join Date: Mar 2005
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
ok,
First, unhook any cruise control mechanism you have attatched to your throttle body, then check for the symptom again.
Any check engine lights? Maybe a sensor on your new intake (IAC, TPS, IAC, who knows) is bad.
Is your idle speed set correctly?
Did you use your old throttle cable or the new engine's? If it's the new engine's, swap it back out to the old one. If it's the old engine's, spray a good penetrating lube down between the cable and the sheath.
Did you use the throttle body off the old intake or the one attatched to the new motor's intake? If you used the new one, swap the old throttle body back onto the new motor's intake.
Chances are, the throttle body on the old engine wouldn't have had anything to do with the poor efficency. Who knows what was causing that....
Disconnect the throttle cable from the throttle body; work the throttle body and see if it sticks, simulate a drive down the block, open it slow etc. etc.
With the throttle cable disconnected have somebody press on the gas and release while you watch the end of the cable, does it stick?
And for god's sake, don't drive the g-damn car while it's like that.
You might not kill yourself, but you might kill somebody else.
Good luck, let us know what happens.
-russell
First, unhook any cruise control mechanism you have attatched to your throttle body, then check for the symptom again.
Any check engine lights? Maybe a sensor on your new intake (IAC, TPS, IAC, who knows) is bad.
Is your idle speed set correctly?
Did you use your old throttle cable or the new engine's? If it's the new engine's, swap it back out to the old one. If it's the old engine's, spray a good penetrating lube down between the cable and the sheath.
Did you use the throttle body off the old intake or the one attatched to the new motor's intake? If you used the new one, swap the old throttle body back onto the new motor's intake.
Chances are, the throttle body on the old engine wouldn't have had anything to do with the poor efficency. Who knows what was causing that....
Disconnect the throttle cable from the throttle body; work the throttle body and see if it sticks, simulate a drive down the block, open it slow etc. etc.
With the throttle cable disconnected have somebody press on the gas and release while you watch the end of the cable, does it stick?
And for god's sake, don't drive the g-damn car while it's like that.
You might not kill yourself, but you might kill somebody else.
Good luck, let us know what happens.
-russell
k so i just swapped out my old d15b2 for another lower mileage d15b2.. now the issue is that once the engine warms up the throttle becomes sticky? like when i push the clutch in with my foot off the gas the rpm's will continue to climb, but if i place my foot under the gas pedal and pull back they will drop right back to what they should be, until i hit the gas again. now this only does this when the car is warm. i have tried a can of throttle body cleaner, and drenched any moving parts in lubricant but no improvement (thought it was just sticky throttle linkage), all fluids are at correct heights. now i do still have most parts from the old engine but trashed the block so i could use some parts from that if needed but that engine got worse gas mileage so i wont to limit the amount of parts coming over from that engine. anyways im sorry if this has been discussed somewhere else but i tried a search and haven't found anything yet, so if you know of a post please direct me to it. but once again any help would be greatly appreciated cuz it sorta scary when i let off the gas and i start to accelerate
04-20-2007, 08:51 AM
#4
Member
Thread Starter
Join Date: Feb 2006
Location: ontario
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
ok,
First, unhook any cruise control mechanism you have attatched to your throttle body, then check for the symptom again.
Any check engine lights? Maybe a sensor on your new intake (IAC, TPS, IAC, who knows) is bad.
Is your idle speed set correctly?
Did you use your old throttle cable or the new engine's? If it's the new engine's, swap it back out to the old one. If it's the old engine's, spray a good penetrating lube down between the cable and the sheath.
Did you use the throttle body off the old intake or the one attatched to the new motor's intake? If you used the new one, swap the old throttle body back onto the new motor's intake.
Chances are, the throttle body on the old engine wouldn't have had anything to do with the poor efficency. Who knows what was causing that....
Disconnect the throttle cable from the throttle body; work the throttle body and see if it sticks, simulate a drive down the block, open it slow etc. etc.
With the throttle cable disconnected have somebody press on the gas and release while you watch the end of the cable, does it stick?
And for god's sake, don't drive the g-damn car while it's like that.
You might not kill yourself, but you might kill somebody else.
Good luck, let us know what happens.
-russell
First, unhook any cruise control mechanism you have attatched to your throttle body, then check for the symptom again.
Any check engine lights? Maybe a sensor on your new intake (IAC, TPS, IAC, who knows) is bad.
Is your idle speed set correctly?
Did you use your old throttle cable or the new engine's? If it's the new engine's, swap it back out to the old one. If it's the old engine's, spray a good penetrating lube down between the cable and the sheath.
Did you use the throttle body off the old intake or the one attatched to the new motor's intake? If you used the new one, swap the old throttle body back onto the new motor's intake.
Chances are, the throttle body on the old engine wouldn't have had anything to do with the poor efficency. Who knows what was causing that....
Disconnect the throttle cable from the throttle body; work the throttle body and see if it sticks, simulate a drive down the block, open it slow etc. etc.
With the throttle cable disconnected have somebody press on the gas and release while you watch the end of the cable, does it stick?
And for god's sake, don't drive the g-damn car while it's like that.
You might not kill yourself, but you might kill somebody else.
Good luck, let us know what happens.
-russell
and pick up her 07 eclipse...mmm....) but yes again thank you and i will try all of your ideas, sorry for the long post by the way