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Dorman 911 400 Combination Valve Review

3

·

Very good

Revainrating 4.5 out of 5  
Rating 
4.6
🌫️ Exhaust & Emissions, 🛠️ Replacement Parts

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Details

BrandDorman
Item Dimensions LxWxH5.6 x 3.5 x 3 inches
ExteriorMachined

Description of Dorman 911 400 Combination Valve

Direct replacement - this PCV valve is designed to match the fit and function of the original valve on specified vehicles. Restores functionality - this valve is made to fit and fully restore part functionality after the original valve fails. Durable construction - this part is made from quality materials to ensure reliable performance and long service life. Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience. Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool.

Reviews

Global ratings 3
  • 5
    2
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 4 out of 5

Impressive Combination Valve for Automotive Emissions

My recent purchase of a combination valve for my vehicle's exhaust system was made based on my experience with this brand's other products. As an automotive enthusiast, I can confidently say that the Dorman 911 400 Combination Valve is a reliable and high-quality part. Its precision engineering ensures the proper flow of exhaust gases and reduces emissions, making it an excellent addition to any vehicle. The only minor downside is that it can be a bit pricey compared to other replacement parts…

Pros
  • Reliable and high-quality engineering, reduces emissions
Cons
  • Slightly higher price point compared to other replacement parts

Revainrating 5 out of 5

Replacing the ejector pump! (Audi A4 2002)

If you are looking for a new jet pump to replace your burned out one this is the one for you. The title isn't that helpful, but I bought it with the correct part number. I installed it on my 2002 Audi A4 (1.8T) and no problems so far! Significantly cheaper and faster delivery than via auto parts (ECS Tuning, GermanAutoParts etc.). Guys this is the real deal!

Pros
  • Replacement Parts
Cons
  • Appearance

Revainrating 5 out of 5

Fixed issue with missing boosts/codes on Audi 1.8T. As always excellent Dorman quality.

Installed on Audi A4 B6 1.8T 2004 Release. There was no BOOST, there was a decent vacuum, NO CODES. Poor idle quality, low idle, poor throttle response. I've replaced the N75 valve, control valve, checked wastegate operation, etc. to no avail. The stem is split in 2 parts, sometimes it's imperceptible (still looks together but leaks). Mine had to split completely into 2 and stumbled horribly at idle with multiple misfire codes (massive vacuum leak). I pulled my hair out for weeks over this…

Pros
  • Automotive
Cons
  • Zero