Rivabanks Posted June 7, 2018 Share Posted June 7, 2018 Hi, I've got a 1987 Comanche, 4.0L automatic with a sticky throttle. It doesn't reliably return to idle after letting off the gas. This problem has been happening for years, but lately it's gotten so bad that I don't feel comfortable driving it. I removed the throttle cable the other day to see if that was the problem, but it still sticks without it attached. After lubricating every part of the throttle linkage I could see, I decided the throttle spring itself most likely needs to be replaced. The problem is: I can't find any information about this spring. All my searches for "throttle spring" return images of springs of a completely different type. The spring I'm looking for is one that is designed to be twisted, not pulled. Does anyone know where I can find one of these? Link to comment Share on other sites More sharing options...
dvitha Posted June 7, 2018 Share Posted June 7, 2018 go to junk yard and get a old throttle body for the renix, or find one online. Or you can just get a long spring, attach it to the arm and the fuel rail. In all my years I never had a renix spring fail on the throttle body. I have a stack of them and I checked non of them are bad. I would clean out your throttle body and check for deposits on the butterfly that is keeping it from returning. Link to comment Share on other sites More sharing options...
Pete M Posted June 7, 2018 Share Posted June 7, 2018 mine failed. spring rusted so bad it broke (the truck lived in michigan most all its life). a long spring worked as a bandaid for a while but eventually sitting around in georgia caused the rest of the linkage to seize up and so I just swapped out the whole assembly for a clean junkyard unit. I love southern junkyards! Link to comment Share on other sites More sharing options...
Rivabanks Posted June 8, 2018 Author Share Posted June 8, 2018 Thanks for the replies. I managed to hook a spring onto the throttle linkage and the bracket I assume is for the cruise control (visible in the bottom right in my first picture). It works well enough to be drivable for now. Looking at the throttle on my 92 XJ, it's got a completely different (and much simpler!) linkage setup. I wonder if I could swap in a throttle of that type without any modifications. Link to comment Share on other sites More sharing options...
cruiser54 Posted June 9, 2018 Share Posted June 9, 2018 chances are you have a bad throttle position sensor also if the spring didn't fix it completely. Link to comment Share on other sites More sharing options...
Ray Rodriguez Posted March 7, 2021 Share Posted March 7, 2021 Hi! I'm trying to find out whats the name of the wire to the right of part circled on the picture. It has to do with the gas pedal wire, mine broke the plastic part on top. Thanks! Link to comment Share on other sites More sharing options...
cruiser54 Posted March 7, 2021 Share Posted March 7, 2021 No pic. Link to comment Share on other sites More sharing options...
Ray Rodriguez Posted March 7, 2021 Share Posted March 7, 2021 Link to comment Share on other sites More sharing options...
Ray Rodriguez Posted March 7, 2021 Share Posted March 7, 2021 It's the one that comes off the firewall and makes like an arc shape, thanks for replying so fast 😁 Link to comment Share on other sites More sharing options...
cruiser54 Posted March 7, 2021 Share Posted March 7, 2021 Accelerator cable. You MIGHT be able to get a new end in the HELP section of your local parts store. Link to comment Share on other sites More sharing options...
Ray Rodriguez Posted March 7, 2021 Share Posted March 7, 2021 Thanks man! Have a nice day! 🤗 Link to comment Share on other sites More sharing options...
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