328 sticky accelerator pedal

Try and WD 40 the linkage at the pedal, as well as at the throttle body. Or even better, just go ahead and replace the acc cable, as well as the clutch cable. It will be well worth it, I did, and never looked back. There is an adjustment at the throttle body, not much, I think your best bet is just to replace it, its the original , Im sure, and its obviously stretched out .

Thank you

 

Replace the cable. Lube all joints.

 

When my qv had a sticky throttle I found the inner cable was freyed . New cable is the go as stated above.

 

Spray some WD40 on both cable ends and then grease. WD40 will dry out after a while...

 

I had a similar issue with my 308, greased/sprayed everything, helped a bit but once I changed the cable it was rectified. It was quite impressive how bent and linked the original was, right close to the washer/grommet.
Not sure if the 328 has a similar set up.

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Do yo have to remove the oil filter when replacing the cable?

 

Not for my 308. It was a bit tricky to thread it through the intake manifold properly but it was no where near the oil filter.
I think the last person that tried to change the throttle cable didn’t remove the grommet and was just pushing in it that kinked it there. I had no problem threading the new one through the tubing once the grommet was out. It was very easy to thread it incorrectly under the intake and have it rubbing so I’d look out for that.

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Removing the oil filter gives you a lot more space for your hand.

 

Good to know! I just struggled through it without even contemplating removing it. Didn’t take too long or too many tries but I’m sure there was room for optimization.

 

Check the bellcrank at the throttle, if it becomes loose or out of alignment it will cause this exact symptom.

 

You should review this old thread:
Today’s Obscure Maintenance Requirement – Throttle Pedal Lubrication! | FerrariChat

It seems that the photos which were referenced in this old thread are now gone. But they can still be seen at the secondary link, which is shown in the above link, post no. 1. (See post no. 9 at the secondary link).

 

Replace the cable, you really can't lube them. It never works. Grease the linkages & bearings first if you want to try that but if they are all moving OK & its the cable then the only option is replacement.

 

I had a similar issue and it was my floor mat holding the pedal in position.

 

I had this issue some time ago on my 328. Performed all the maneuvers suggested above including replacing the throttle cable without success. Ultimately what solved the issue was re-greasing the pivot bushing on the throttle body (see the annotated photos for location details). Upon disassembly I found the bushing in question caked with dried grease. Throttle sticking completely resolved after thoroughly cleaning the bushing and re-greasing. Hope this helps!

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"I had a similar issue and it was my floor mat holding the pedal in position."

I'm embarrassed to say that I once worked on a Porsche 911 turbo that was brought in because it couldn't produce full boost/power. We did some checks/tests for about an hour until we discovered that the problem was the floor mat had bunched up underneath the accelerator pedal so it couldn't fully depress!

 

The floor mat issue is better known as Italian cruise control.

 

I once spent about 45 minutes trying to get my lawnmower to start. I checked a bunch of things and replaced the spark plug, air filter and engine oil. Of course, I could have saved a lot of time and trouble if I had put some gas in it first. I don't know why we so often overlook the simplest causes!

 

I fixed that by riveting an Aluminium angle pc to the housing it never moved again here is a pic
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Great idea!

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You are the MAN I was having the same problem for a long time every one told me replace the Cable and then i see you post
I removed the sleeve it was all dry and full of hard old grease I had a hard time getting it out, polished it with 600 paper sleeve and hole packed it with high heat grease and all the sticking is gone the idle revs going 1000
all the time now and the pedal feels very smooth thank you for an easy fix

 

Fantastic! Very glad it was helpful for you.

 

Same sort of problem with my 308. The lubricant wasn't really dried up, as much as it had dissipated out of the bearing area. The 308 bushing and bolt is a single piece, but still looks very similar to the 328 setup.

I lightly buffed the bushing with Scotchbrite, slathered on some high-temperature white lithium grease, and reassembled. Test drove it, and it’s nice and smooth now. Photo is just after wiping it clean, pre-buffing.

Glad I saw this thread, it was really sticking bad. Thanks for posting!
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I just picked up my 328 from Dave Helms's shop after he replaced my fuel hoses and lubed my throttle pivot points. The pedal is smooth as butter now.

 

For lube, I used a motorcycle brake / clutch line cleaning kit. Any good motorcycle shop has it.

Start video at 3 minutes.