rattle in gear (1 Viewer)

[AZcruiser]

On my 94 I have rattle/vibration when its in drive this deep sounding rattle happens when the brakes are on at a stoplight etc. When I put it in neutral the rattle dies out and is smooth. The sound is from the PS under the hood. My first thought was the condenser box, I cleaned this out last spring and one of the clips could be loose or screw on the back side. But I hada friend secure the condenser cover and it was still there. Obviously its torque from transmission but too much to vibrate something else? Or is this a drivline issue
Any ideas/thoughts?? thanks

chris

 

[Scamper]

Check the heat shield over the exhaust manifold. It's only held on by a few small bolts, and if they get loose or fatigue the metal to the breaking point, you'll get some rattle.

 

[AZcruiser]

thanks Tom I will check it out tonight.

 

[rob34]

same problem

I have the same problem...it is not the heat shield. Any thoughts?
Thanks.

 

[Lovey]

My 94 brokedown last night...not sure yet. But my symptons were very much the same leading up to said breakdown.

 

[AZcruiser]

Lovey,
Can you be more specific on what broke down? I havent isolated the rattle/hum yet but think its more dash, condenser cover related no strain on the motor but vibration while in gear.

 

[Lovey]

PM'ed ya AZcruiser

 

[beefjerky1]

you guys get it figured out yet? Mine's doing the same thing.


Thanks

 

[Lovey]

Bf jerky....im havin it looked at on monday...I will post the findings when I get them...hope this will help ya.

jeff

 

[rob34]

Alternator bolt

I think I may have solved my rattle problem. My symptoms are identical to the above described. I would hear a rattle sound from the engine when in gear and brake on. No rattle when in park or neutral. When I put pressure on the Alternator the rattle would diminish. I found the lower alternator mounting bolt was a little loose. Just to be sure, I put a thin piece of dense rubber under the alternator and readjusted/tighten it. No more rattle. I think the alternator was vibrating against the engine/frame. Kinda wierd this would only happen in gear with brake on. Maybe engine torque? Let me know what you guys find...maybe this is a symptom of a bigger problem.
Thanks.
Rob

 

[alia176]

I'm having a silmilar rattle under load/accel. Can't quite figure out where it's coming form but I do hear it somewheat on the driver side too. I'll check the shields first.

 

[Lovey]

I'm getting my 80 back today..all fixed ..I'll post the problems here later tonight for all who were suffering the same type problem .

 

[Lovey]

Fuel pressure reg was stuck..