90 caprice backfire @ 65+

[Blue Bowtie]

The TCC solenoid is the same for either transmission. The symptoms are the same. Further, the TH200-4R uses a TV cable like the 700-R4, and the adjustment procedure is the same.

The overheating could merely be a symptom of the clutch not engaging, not necessarily from the clutch slipping. If the TCC solenoid had failed, it would not apply the clutch. That would cause the heating from constant torque converter slippage. However, as long as the TCC solenoid was not applying the clutch, there should be no additional damage to the clutch from driving it that way. You might get lucky and find that clean fluid and a filter, and finding the reason for the clutch not engaging would solve the problem.

20º? Farenheit? It's supposed to be back up to that or higher around here in about a two weeks. Good luck.

[theobern]

Well here's the latest...

The tag on the cowl say's to set timing at 0*
When I got the car a it was set at 12*
And thats how I drove it for 100000 miles.
I tried adjusting it for better performace; no change so it was left at 12*
When I got it back from the shop last week it was set at 8*
It was running bad, no power, poor shifting
I tried setting it at 0* same thing
I went out there yesterday and adjusted the TV cable one notch looser
I started giving the throttle full snaps and it would back fire through the TBI
I thought what could it be but timing since I just had Injectors installed
The chain had been checked by me and the mechanic
So I put a timing light and a vaccum gage on it
I read once: adjust timing for most vaccum and then back off a little
I reved it up... it sounded great
Checked timing It was off the scale
If I had to guess it would be about 25* or so????
I took it out last night It ran great and down shifted good. The jury is still out so ill give it a couple more days before Im sure all's well

Hopefully when it get warm this summer I dont have any problems. All I have to do is work on the TCC issue and the fuel system short (code 54) and I should be good to go. I may wait for spring on the TCC. Without all of you help'n me It may have takin me alot longer.

I just hope this info can help someone elce, save them some of the head aches that I have been through.

[theobern]

Another thought:
The mail man comes by every day while im working on the car, we talk for few about my troublesome car. Well today I told him about how I had set the timing so far in advance... he says "I wonder if the distributor is not set in rite..." I had not even thought of that. It had been removed recently... That kinda makes sence...??? It runs good but there still room for improvement.