700R4 TCC Wiring - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Accelo** · 10-25-2021, 01:36 AM

It would be interesting to analyze the behavior, especially on later fuel-injected systems.
With the 700R4 transmission debuting in 82 and Fuel Injection 87 and full electronic (4l60E's) in 1993. It continued to get better as time went on. By the time it full electronic in 93 it was sorted out pretty well. The 2.8L Blazers were some of the worst. I purchased an 87 Blazer new. I was aware they were problematic so I purchased on with a 5 speed manual.
At that time I hadn't realized the 87 was completely upgraded. Or I would have gone for the automatic. You are basally reverse engineering what GM did in 93 on the converter. What would be cool is if you could get the GM code.

10-25-2021, 01:36 AM	#11
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,194	Re: 700R4 TCC Wiring It would be interesting to analyze the behavior, especially on later fuel-injected systems. With the 700R4 transmission debuting in 82 and Fuel Injection 87 and full electronic (4l60E's) in 1993. It continued to get better as time went on. By the time it full electronic in 93 it was sorted out pretty well. The 2.8L Blazers were some of the worst. I purchased an 87 Blazer new. I was aware they were problematic so I purchased on with a 5 speed manual. At that time I hadn't realized the 87 was completely upgraded. Or I would have gone for the automatic. You are basally reverse engineering what GM did in 93 on the converter. What would be cool is if you could get the GM code.



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