Question about 1991 Toyota 4Runner

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91 toyota 4runner is running at 1500-2000 rpm and it keeps bogging back and forth constantly and i am not sure why or what to do to fix it??

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91 Toyota 4runner stalling


Try to clean the Throttle body of your engine I believe you never did, Also check whether you have also Air Flow Meter which is situated on the Flex Intake Hose of the engine.If so remove it by disconnecting the connector and remove the 2 little screws. Take it in your hands and check the inside where on the one side you will see a small wire surely would be covered on dust. By means of carburettor Cleaner give it a blast after you remove the "O" ring first.Give it a try.

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You have a leaking trans output seal leaking into transfercase adapter or trans tail, need to remove transfercase to replace and order seal from a dealer they are hard to find any were else. good luck

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Jul 13, 2010 | 1991 Toyota 4Runner

1 Answer

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Seems like you replaced everything on the ignition but the cap. Sounds like a good place to look to me.
Look for burn marks around contacts.

May 30, 2010 | 1991 Toyota 4Runner

1 Answer

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All "TUNE UP' Components MUST Be Eliminated as suspect to go further with Diagnosis. They Should be 1. KNOWN to be or CLOSE to NEW or 2. Recently Replaced.
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1 Answer

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1 Answer

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2 Answers

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you need to have it scanned for codes

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