what is this thing and where can I find replacement?

 

Called a Dashpot, try napaonline or junkyard. Will run fine without.

 

yotakid825 I was wondering if it's similar to the issue I have with mine. I can't figure it out.

Symptom:
- when stopped feels like gas peddle is stuck in the idle or no load on pedal
- need to go past the threshold of it sticking to free it (kind of like flooring it).
- once free it works fine till the next stop

 

You can try to pull that boot on the dashpot back and spraying some WD-40. May save you some moneys.

 

It'll run fine as long as you release the throttle easy. It's to buffer the throttle shutting abruptly. You can run a test on it if you're not sure about it. That's covered in the online FSM. The dashpot looks good from appearances...no cracking boot or rust?

BTW, looks like a bit of slack in your throttle cable. Might tighten that up a bit.

 

That sounds like a sticky throttle plate or cable.

And yotakid, are you sure it's not the same for your situation?

 

Lube the dashpot. You might also pull the intake piping off and clean out the throttle body. In my experiences with it, I always take a q-tip and dip it in clean motor oil. I put the motor oil (very small amount) on the valve itself inside the TB where it pivots. I've had problems in the past with a sticking TB after I cleaned it out with cleaner. Just a suggestion...

 

well I'll explain what happened when I noticed theo issue. I started the truck and let it idle for around 2min then tached it up to about 3grand and let off, but it stayed right there. then I tached it up to about 4grand and let off. again it just stayed there. so I shut the truck off and opened the hood and with the throtle pully thing. I noticed it wasn't going all the way back. then I manually turn all the way back and started the truck. it was idling fine at 1grand. I tached it up a little bit and again it stayed right there. so I shut the truck off and went inside.
I hope that helps a little. BTW the rubber boot is ripped open

 

can I run the truck without the dashpot?

 

Yes,you can, and that your tellin' me is exactly what repair manual says is a bad DP. There's another allen wrench threaded limiter that will(should if set correct) save your throttle plate from harm, should you release your accelerator quickly. It's next to DP adjustment screw. If it's set wrong, the throttle will stick when you let off fast. Adjusting is not so simple. Ask if you need to. More tech, the DP is designed to allow slower closing of throttle plate when decelerating, which lowers the emission of yada yada yada gasses, so on an' so forth.

 

It's there for a reason. It will operate on deceleration better. It's especially important to have the stop post the dashpot mounts on. That HAS to be there. Go ahead and replace it. I'd lube the throttle cable, mechanisms, and plate and clean the intake port, too...if it does need it.

 

I had the same problem about a week ago and no amount of lubing the dash pot helped. On the suggestion of a buddy, I sprayed some PB Blaster into the throttle body on the butterfly valve and worked it in, then wiped it out with paper towels and the problem vanished.

I was sure it was the dash pot too...

I was wrong.

 

The dashpot also helps keep NOx out of the emissions, so you shouldn't drive without it for long...

 

All true. I have a 3VZE , and I'll swear the DP on it is just for looks. I'm positive it doesn't function, as I've tested as prescribed. What I mean is it is mounted on there with no vac hose to actuate it. I have no idea, but as I haven't had a problem, YET, without it, I'm not thinkin' it's essential. Main reason being, no emissions regs apply to me. I'm old school and do not believe ANYTHING they've done,to cut emissions, could possibly help the true efficience of a gas engine.

 

the idea behind the dashpot is to prevent the throttle plate from going from wide open to closed all of a sudden. If you ever listen to race cars when they're downshifting rapidly you'll understand why the dashpot is there. You can rip it off and it wont cause any issues as long as you let off the throttle semi gently when shifting instead of having it on the floor, and just ripping your foot off it quickly.

Personally i'd libe the throttle plate, and cable because i dont think the dashpot is you're issue.

I believe there is also some method for cleaning the dashpot because it can fill with crud and gunk. might try doing a search for that one.

 

The rubber boot on mine was hard and when I tried to make it compress it shatter, I pulled it oof cleaned the spring and drilled out the valve, I like the quick drop, Also seems to make the trails easyer when you need to make a better stop from that big rock insted of riding the brakes, Thats a manuel tranny too.

 

well I going take my TB off and clean it and lube it and check the intake and clean it if needed. also going to take the dashpot and clean and lube it.

 

mine used to stick. then one day i sprayed a shot of penetrating grease into the hole in that little boot (yours looks a lot better than mine - the hole is because it is ripped in two), and it hasn't been sticky since

 

when I got home today I pull the intake tubes off guess what I found in the TB........a nice little pile of accorns



I was going take the TB off like I said earlier, but I remembered that I didn't another gasket. once I get a gasket and a new dashpot I'll be all set. thanks for all the info guys

 

OMG!!! LMAO! Now, just how the hell would those have gotten in there? And where the hell is the squirrel? LOL!