Rick's Free Auto Repair Advice

Hesitation and surging on Blazer 4.3L

Fix Hesitation and surging on Blazer 4.3L

If you have Hesitation and surging on Blazer 4.3L and it’s driving like a dog—poor acceleration, hesitation, or a surge and you suspect a fuel problem, you may be partially right. But before you start replacing really expensive components like the fuel pump, try this: Disconnect the electrical connector to the MAF sensor and take it for a drive. If you notice an improvement, try cleaning the MAF with CRC MAF sensor cleaner. Shops are reporting that a MAF sensor replacement is far more likely a fix than a new fuel pump.


© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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