Okie so I have an 87 TII with 75k miles on it. Runs just fine when its in the 80s. But when it gets hotter and the car gets heat soaked it wont idle for anything. It'll die right on the spot. But if you drive it for a lil while and you're not in stop and go traffic and you stop again it'll idle just fine. And its only when its REALLY hot outside. We just moved to MO from WV. Car ran awesome on the 800 mile trip.

Anyway, car had previously had an engine fire from the PD. We've replaced all the vacuum lines and wiring harness. Granted I need to run some grounds because I'm getting the 3800 rpm hesistation..

Anyway, we're thinking its something that is electronic and on the engine. Any thoughts on this one?

Thanks guys.

 

Bump the idle up a couple hundred rpm via the throttle stop screw behind/below the IC, and be happy.

 

car idles at 1100 rpm anyway cuz the idle's set way high :P

 

im having a similar problem. does anyone else have an answer?

 

IF your idle was set using the bac screw, then go back in with it until the idle is low, and use the throttle stop screw described above to raise the idle for best stability. The BAC adjustment is an airflow adjustment that changes with temperature and conditions, while the throttle stop adjustment is a physical linkage/plate adjustment that is always constant. Think of the bac as a fine adjustment and the throttle stop as a coarse adjustment.

I usually set my idle around 900-1000 which improves ease of takeoff around town, and idle stability under all conditions.

 

k.. so it was my thermowax being a royal pain. took it off and things are happier. We'll see how it goes when it gets real hot again.

 

You could always move to Canada.. from what I understand about Canada (And all of knowledge comes from movies and TV), is that Canada is a land of ice and show, where it never gets above -20 F, and moose roam freely though the towns..


I may be wrong, though

 

Unfortunately, however, you have to constantly dodge all of the flying hockey pucks that frequently fly through the air....

 

Why would a thermowax cause a car to die when hot? A stuck thermowax could cause a high idle when hot (if it were stuck in the cold position) or a low idle when cold (if it were stuck in the warm position).

 

Because we don't have the coolant going through it. We thought the the ambient air would warm it up enough.

Well it did, sorta.. It warmed it up almost completely when at normal operating temps. So I set the idle from there.


Wellllllll... once the engine got heat soaked, it warmed up the final little bit, lowering the idle to nothing

It's all fixed now, and running better than ever!

I also figured out that the secondary throttle plates were NEVER opening.

Gee that's why the car felt like an N/A..

But wired those puppies open, removed the thermowax, took it out for a spin, and proceeded to boil the tires off the car between 1-2 and 2-3.

was fun

Wife isn't impressed witht he lack of cold-start tho

Oh well