The transmission vacuum modulator measures the load of the engine's vacuum, so the transmission can shift gears correctly. If you're experiencing problem with the shifting of your car, then you might need diagnose and replace the transmission vacuum modulator. Here's a list to help you with your search.
- Check the make, type, and year of the vehicle that's applicable to the modulator. This will help you search faster. You can easily do this in aftermarket websites in just a few clicks.
- Determine if the transmission vacuum modulator is fit for a 6-speed transmission, 5-speed, or lower transmission levels. You should also find a modulator that gives you the ability to adjust the throttle shift points. There are also some modulators with screws that can adjust diaphragm preload.
- Choose a transmission vacuum modulator that already includes a seal, so you don't have to look for one that will fit on the modulator. It is also helpful if the modulator already has instructions on how to install it.
- Make sure that the part you're going to buy comes with warranty. You can avail at least a 90-day standard limited warranty only from trusted brands like AC Delco and Standard. They also use the highest quality of materials in their products.
- Ready your budget for a transmission vacuum modulator. The price can go as high as $132 although the cheapest can only cost you $20.
- DO NOT install a used transmission vacuum modulator in your vehicle. The condition of the material is unknown, and it may have an effect on the other car parts. To be sure, always find a new replacement.
- DO NOT attempt to use a transmission vacuum modulator not specified for your vehicle. You won't know the result of it to your car.