![]() As the throttle opens, this pulls on the cable which moves the throttle valve inside the transmission valve body and increases line pressure.Īll of this works very well in the stock OE configurations because the GM engineers worked out the details. On the other end, the cable is directly attached to the throttle valve that adjusts line pressure in the transmission, much like the vacuum modulator did on earlier automatics. On the top of the engine, the TV cable is connected to the throttle arm on the carburetor or throttle body if the engine is EFI. The TV cable on the 700-R4 and its cousin the 200-4R overdrive transmissions replaced the old vacuum modulator valve as the device used by the transmission to sense the load applied to the transmission. This is a complex issue with a ton of other potential causes but we’re going to go with the best option of making sure the TV cable is properly adjusted because this is often where big problems begin. This sounds like a classic case of an incorrectly adjusted TV cable. Yes and hopefully you have not hurt the transmission in the process. We were thinking that maybe the torque converter is a little too soft and that’s causing the weak shifts. My problem is the transmission doesn’t seem to be as strong on the up shifts as it should be. The engine runs fine with a set of Edelbrock heads and Performer RPM intake and a Holley 750 vacuum secondary carburetor. We don’t guarantee that we will receive your returned item.I’ve got a 700-R4 in my Chevy C10 pickup behind a typical 383ci small-block Chevy. If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. Shipping costs are non-refundable.ĭepending on where you live, the time it may take for your exchanged product to reach you, may vary. You will be responsible for paying for your own shipping costs for returning your item unless we are at fault. To return your product, you should mail your product to: 127 Hartman Road Wadsworth Ohio US 44281 If you need to exchange it for the same item, send us an email at and send your item to: 127 Hartman Road Wadsworth Ohio US 44281. We only replace items if they are defective or damaged. Only regular priced items may be refunded, unfortunately sale items cannot be refunded. If you’ve done all of this and you still have not received your refund yet, please contact us at items (if applicable) There is often some processing time before a refund is posted. Then contact your credit card company, it may take some time before your refund is officially posted. If you haven’t received a refund yet, first check your bank account again. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days. We will also notify you of the approval or rejection of your refund. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. To complete your return, we require a receipt or proof of purchase. It must also be in the original packaging. To be eligible for a return, your item must be unused and in the same condition that you received it. ![]() If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
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