Will bad booster box make engine have low idle and die

What is your question?

What makes this problem better or worse?

No brake low idel

How long has your 2003 Toyota 4Runner had this problem?

2 days

Visitor

in Harrison TN

Jun 8, 2019

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What are the best Toyota repair shops?

RepairPal Certified shops can diagnose and repair your 2003 Toyota 4Runner. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

Will bad booster box make engine have low idle and die

What is your question?

Will bad booster box make engine have low idle and die

What makes this problem better or worse?

No brake low idel

How long has your 2003 Toyota 4Runner had this problem?

2 days

Visitor

in Harrison TN

Jun 8, 2019

1 Reply

Popular Answer

pushrodon Jun 8, 2019

Not familiar with a “booster box”.. Perhaps you mean brake booster?

pushrodon Jun 8, 2019

Ok - let’s assume you are indeed referring to the brake booster .. Vacuum booster can easily be eliminated as the culprit concerning the idle issue by simply disconnecting the vacuum supply hose then plugging the hose with a suitable device so no vacuum will be drawn in - - does engine now idle normally ? ▪️This is for TESTING purposes ONLY while vehicle is parked! ▪️DO NOT DRIVE VEHICLE WITH VACUUM HOSE DISCONNECTED FROM BRAKE BOOSTER !! Good luck!

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Popular Answer

What are the best Toyota repair shops?

RepairPal Certified shops can diagnose and repair your 2003 Toyota 4Runner. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.