commando1
Old Man with a Hat
My gawd, I never knew the 78's had a plumbing disaster that bad. Wow.
My gawd, I never knew the 78's had a plumbing disaster that bad. Wow.
A smoke machine would be nice about now... It's much easier to see the smoke and how many vacuum leaks than it is to try to pinpoint them with propane, or whatever you prefer.Hey Jeff,
No EGR valve in this car. It’s blanked off
Among the crazy things running through my mind is an underside intake manifold crack or leak. It fits the symptoms in that the evenness of the idle gets better after a full heat cycle if I don’t wait too long to start the car.
I use carb cleaner... in tiny squirts. But a smoke machine is scheduled for SaturdayA smoke machine would be nice about now... It's much easier to see the smoke and how many vacuum leaks than it is to try to pinpoint them with propane, or whatever you prefer.
IIRC, you have a scope available. Put the scope on Parade/Display and set the voltages so they stay on screen during power braking. A lower spike (firing line) on #4 would help confirm the idle speed bower balance.
You could also make a quickie EGR block off from flat steel to assure that it isn't bleeding any exhaust gases. At low speed (idle/off idle) EGR will make a big difference in smooth running. At the cost of a gasket, the best test I have for you... a 4/5 gas analyzer would show higher HC's, but would be a bit subjective and easy to confuse with other problems.
Here is a fair enough overview of a dynamic compression test... I know you can research from here...
Dynamic Compression Test
Running Compression Tests - ALLDATA Support
Hope this helps
Worried it had become a Toyota... or an Audi 5000???the car started accelerating on its own and scared the **** out of me for a moment.
Lol.... more like possessed by the PO who was pissed I was f’ing with his car!Worried it had become a Toyota... or an Audi 5000???
Thanks Stan....Halt. Put away the DMM fefore you have half the car torn apart,
I already know the problem.
View attachment 211346
Just a bad connection due to age. Clean it up and make sure the connection stays tight.Thanks Stan....
Describe it please....what is the repair?
The P.O. had that connection with an external wire tie that I took off just before the problem started... I guess I’m the cause this time.
But I don’t understand why that big connector would fail due to engine heat.
I actually found NORS ones. Please don't ask me where. It was the most obscure website on Earth and it was several years ago. I haven't had my coffee so let me wake up first.Anyone out there have a spare they would part with???
Stan?
I actually found NORS ones. Please don't ask me where. It was the most obscure website on Earth and it was several years ago. I haven't had my coffee so let me wake up first.
EDIT; I wasn't awake. The NORS ones were for the cornering lamps, not the parking lights.
Back to you, Jeff...
(I gave Jeff a box of misc. sockets. Bet he can't find them now. )
Halt. Put away the DMM fefore you have half the car torn apart,
I already know the problem.
View attachment 211346
OK, I was wrong.Did it again today
So how do you take off the reluctor Mr smarty pants?OK, I was wrong.
But that connector needed to be cleaned, anyway.