1969 IMPALA Engine Mounts a problem??? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 02-28-2006, 01:15 PM
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1969 IMPALA Engine Mounts a problem???

I have a 1969 Impala with a 350 engine 400 Turbo Tranny, Camel Heads, 4 barrel Holley Carb, Hooker Headers and 40 series Flows. I am currently having problems with my car, losing control whenever I drive up onto an elevated drive way while stepping on the gas the accelerator just jumps to full acceleration not only has this happened on a driveway but also when I drive around town making turns. I have read that in 1969 the Impala had a recall on cars due to it's engine mounts breaking causing the car to hit full acceleration. I am just wondering if there could be any other cause for this problem?

Please help!

- OUT OF CONTROL IMPALA!

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Old 02-28-2006, 01:20 PM
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Test by lifting hood and have someone blip the throttle while your foot is SECURELY holding the brake pedel while the engine is in gear. Set the E brake for goods measure. See how far the engine moves?
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Old 02-28-2006, 01:21 PM
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Yes it could very well be a weak or a bad engine mount.
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Old 02-28-2006, 01:35 PM
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floating pedal

Do you notice the gas pedal floating when you hit bumps on the road? If so its motor mount
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Old 02-28-2006, 01:47 PM
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Replace the motor mount/s then go to a salvage yard and look for a cable strap that GM put on millions of cars. it mounts to the drivers side exhaust manifold and goes around the upper control arm. Good saftey measure when the mount gives way. Or a piece of chain bolted to the manifold and going to the control arm shaft works too.

Mark
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Old 02-28-2006, 01:47 PM
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Chevy had a problem with their mounts prior to '69 and came out with restraining cables that essentially linked the engine to the upper control arm on both sides. I thought they changed by '69. Maybe not.

I think you could detect a bad mount(s) by lifting or jacking up the engine. It sounds like one or both may be bad.
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Old 02-28-2006, 04:45 PM
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If it is the mounts you don't need the chain or cable when you replace them. They redesigned them decades ago and added a T shaped locking tab so that even if the rubber did fail the mount will not allow the engine to lift more than a 1/4 inch or so.
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Old 02-28-2006, 05:49 PM
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I appreciate everyone's input, I just might go ahead and check the mounts and change them if need be. I guess I'll try what johnsongrass said, I was hoping it wasn't the mounts... Thanks everyone, I appreciate the help!
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