{"product_id":"oversized-throttle-valve","title":"Oversized Throttle Valve","description":"\n\u003ch2 class=\"light\"\u003e\u003cstrong\u003eNot compatible with early '82–'90 aluminum sleeve units.\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eA low throttle boost condition is a common complaint in vehicles with a vehicles with GM 4L60 transmissions. This loss of throttle boost oil creates poor line rise and accelerates 3-4 clutch and band failure. In late-model transmissions, the hardened steel throttle valve continuously oscillates in the cast iron valve body bore and eventually wears the three bore diameters. This wear allows throttle valve feed oil to leak past the valve spool and exhaust, resulting in a low throttle boost condition. This excessive leakage can be eliminated by reconditioning the bore and installing Sonnax oversized throttle valve 77968.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eThe three spool diameters on this valve are slightly larger than the late-model OE valve, allowing the valve body bore to be modified to restore the hydraulic integrity of the assembly\u003c\/li\u003e\n\u003cli\u003eReamer eliminates miscalibration or similar wear when exchanging with another used valve body\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"break-out-grey\"\u003e\n\u003cdiv class=\"wrap scc\"\u003e\n\u003cdiv class=\"col-4\"\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow line rise\u003c\/li\u003e\n\u003cli\u003e3-4 Clutch \u0026amp; band failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"col-4\"\u003e\n\u003cp\u003e\u003cstrong\u003eCause:\u003c\/strong\u003e\u003c\/p\u003e\nA low throttle boost oil condition.\u003c\/div\u003e\n\u003cdiv class=\"col-4\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"col-4 last\"\u003e\n\u003cp\u003e\u003cstrong\u003eCorrection:\u003c\/strong\u003e\u003c\/p\u003e\nStop excessive leakage by installing Sonnax oversized throttle valve with slightly larger spool diameters.\u003c\/div\u003e\n\u003cdiv class=\"col-4 last\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"break-out-accent break-out-accent-link\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRequired reamer 77968-RM is no longer in production. Check with your distributor for availability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e \u003c!-- suncoast-documents:start --\u003e\u003cdiv class=\"suncoast-product-documents\"\u003e\n\u003ch3 class=\"h6\"\u003eDocuments\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/184337.pdf?v=1793635314\" target=\"_blank\" rel=\"noopener\"\u003eInstructions\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\u003c!-- suncoast-documents:end --\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":49129571352795,"sku":"77968","price":142.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/4173\/0267\/files\/F198656491.jpg?v=1786547211","url":"https:\/\/suncoastperformance.com\/products\/oversized-throttle-valve","provider":"SunCoast Diesel","version":"1.0","type":"link"}