Recent content by Scota4570

Some time later........... I guess a new day brought me luck. To got inside the throttel body. The front port on the throttle body was plugged. I unplugged it. I was hesitant because I was not sure if there was something fragile inside the throttle body. They were both just holes into the...

I did not pass smog because the EGR was not functioning. I have replaced everything related. The OG tech noticed that Port "P" on the vacuum modulator was not receiving vacuum. He refused to work on it because he was to busy. I have found nobody else who has the first clud on these old...

My understanding is that using R134 with the mineral oil already in the system will trash destroy it with sludge. It did exactly that on my 1988 T-bird. It worked about 10 minuets then completely failed. There is a conversion process to use R-134 and it is expensive. R-134 requires a...

1991 LC. The AC has faded slowly over the last year. IT is an R12 system. I can not get R12. R134 will destroy my AC system. What is FR12 refrigerant? What are my options? Thanks Scot

If I had the parts I'd put mine back on the tree like it is supposed to be.

What is the value in Ohms for that big old thing? How many watts?

Sorry to be a kill joy. One Ohm is not enough, one ohm is about a foot of old wire in resistance. I am almost certain that you need a lot more resistance. The resistance is what determines the voltage drop and the fan speed. My meter was hunting around between about 80 and 150 ohms. I...

That seems like ridiculous money for a simple part. Anyone know the resistance measurement? That should be available as a wire wound ceramic resistor and a slight cost. Added later: I tested mine. In the truck I get around 100 ohms. It is called a tubular ceramic wire wound resistor. Like...

"Any exhaust leaks before the cat? What happens when you apply vacuum when idling, It should almost shut off." There was, I got it fixed some time ago. It was under the drivers' left foot. I hear nothing now. Yes, applying vaccum to the modulator makes it stumble badly. I think it is...

The silver tube that goes to the EGR modulator is flowing free, not plugged. The coolant in the radiator is still when cold as viewed through the cap hole.

Everything is as made by Toyota. I am a strong believer that I do not have sufficient knowledge to second guess the factory engineers. The thermostat was tested and appears to work correctly. The system was flushed and the coolant replace about a year ago. The coolant temperature is...

We are getting off track. My questions was, "I have done some longer off road drives lately. This mostly at under 10 mph and on steep terrain. About 50 miles each outing. For some reason that kind of driving causes the dash light turn off and go away for a while." For reference, that dash...

The inside of the EGR assembly is very clean, I cleaned it, twice. I verified function, it works properly, the diaphragm is in good condition. The passage way behind the EGR is clear.

I replaced it with a Denso 25870-66011 / 139000-3300. It works the same. The old one worked fine. Based on the testing procedure, the whole assembly and hoses works as it should when tested with the vacuum tool. The hoses are all free and not plugged. They seemd to have discontinued the...

I did the testing of the EGR temp sensor as described in the manual. Pretty sure I already did this already. I think the more accurate readings were when the temp of the oil was slowly cooling. I used three thermometers. I tested both the original and the replacement sensor at the same time...