When I put it in drive it dies I cant figure it out why?

DNVRLUV

MEMBER
1985 CHRYSLER FIFTH AVENUE

I have a 85 chrysler 5th ave and when its in park it runs great but when I put it in drive it dies I cant figure it out why it does that does any one know what causes this and how I can fix it?

Already Tried:
I replaced the valve cover gaskets changed the spark plugs also kicks out white or blue smoke when it first starts up but none while it drives dies as soon as I put it in gear. If I coax it I can get her out of the drive way but when I come to a stop it sometimes dies or it bogs down almost dying there is a vacuum hose that run from the carb to this little zert(Where it belongs) on the air filter housing when I have it idling when I disconnect that vacuum hose it seams to run better and when I plug it in it makes the engine rev higher now its totally different when its in gear when its in gear If I have that hose disconnected it runs pretty good but does the same when it drives now when I connect that hose to that zert (in gear) it makes the car bog down and die what can I do?

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

More than likely you still have a vacuum leak. So that means we need to start with using this guide to find where that leak is.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

If there is no vacuum leak, then we need to inspect the purge system. If you have a stuck purge control valve, then this can cause the engine to run rich and will throw off the RPM as there is rich fuel vapor coming in when it should not.

I am attaching the info below on this for your review.

Please run through this info and let me know what questions you have.

Thanks

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