EGR, EGR vent, wastegate control, and transmission solenoid are on the same quad driver circuit and can cause intermittent stalling. PMD (Pump Mounted Driver) Buy PMD for GM Diesel, or. Buy a DS4 Injection Pump for The pump mounted driver gets fused 12 volt power when the key is on. If your OE vacuum system is failed and economics are an issue, then a Turbo Master is the clear choice." - JK. $ Turbo Master mechanical wastegate control for GM-5 and GM-8 turbos. The Turbo Master mechanical wastegate control allows increased boost pressures on any GM-5 or GM-8 turbo with the vertical wastegate actuator. · Tired of your vacuum pump operated wastegate? Want to manually control your boost? All you need is an eye bolt, a spring, and a boost gauge.
Cheapest and easiest way to do it. Guaranteed. Turbo Diesel Performance. turbo diesel performance is one of the things that makes owning one so worth it. Not in stock form necessarily but with the ease of what amounts to bolt on mods. In stock form and in well maintained shape, the can give reasonable performance for a daily driver or occasional hauling. If your OE vacuum system is failed and economics are an issue, then a Turbo Master is the clear choice." - JK. $ Turbo Master mechanical wastegate control for GM-5 and GM-8 turbos. The Turbo Master mechanical wastegate control allows increased boost pressures on any GM-5 or GM-8 turbo with the vertical wastegate actuator.
The factory vacuum operated turbo control system on the L's had issues for years The vacuum pump that operates the system is known to lock up and destroy the serpentine belt In order to permanently correct the issue, install one of these wastegate kits that combine with the turbo wastegate valve to create a smooth working, fully adjustable system. Converting the stock Turbo Diesel wastegate actuator to manual control. Tired of your vacuum pump operated wastegate? Want to manually control your boost? All you need is an eye bolt, a spring, and a boost gauge.
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