- posted
20 years ago
Leaking TBI Injector??
- Vote on answer
- posted
20 years ago
Most likely a ruptured fuel pressure diaphram.
Cheers
- Vote on answer
- posted
20 years ago
Or a bad CTS.
Doc
- Vote on answer
- posted
20 years ago
-------
Whats that Doc.
HDS
- Vote on answer
- posted
20 years ago
Coolant Temperature Sensor, tells the computer how hot the motor is and adjusts air/fuel mixture accordingly. If it's nearing the end of it's life (or completely shot), it defualts to -40F which runs a super rich mixture and can cause the black smoke. It's located right next to the waterneck on the intake, will have two wires (usually yellow and black).
Doc
- Vote on answer
- posted
20 years ago
Some advice if you replace the FP regulator:
don't just buy the repair kit. Buy the whole darn thing. The spring inside the regulator likes to break into multiple pieces, and it doesn't come in the repair kit. You will invariably find this out at
9pm on a Sunday evening. Without that intact spring, the reg can not work properlyAsk me how I know. ;)
- Vote on answer
- posted
20 years ago
- Vote on answer
- posted
20 years ago
Isn't that supposed to cause a constant rich setting though?
-The Lonely Grease Monkey
1985' K5 305CUI TH700R4 NP208 KJ's successor"Ignorance is preferable to error; and he is less remote from the truth who believes nothing, then he who believes what is a wrong." - Thomas Jefferson
- Vote on answer
- posted
20 years ago
motor
Yes it is, that's exactly what I said.
Doc
- Vote on answer
- posted
20 years ago
Sounded like it was an intermittent smoke problem... and a CTS would cause constant black smoke, or close to constant....
~KJ~
- Vote on answer
- posted
20 years ago
Not necessarily. If it's an intermittant electrical connection (CTS contacts are prone to corrosion due to location) it wouldn't be constant. Also, on a colder day, even if it was running way rich, it might not be enough to cause constant black smoke.
Doc
- Vote on answer
- posted
20 years ago
Makes sense. Thank you much for the lesson!
~TLGM