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Very stiff throttle HDI - Printable Version

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Very stiff throttle HDI - boggs - 26-01-2016

As in the title the throttle in my 306 hdi is extremely stiff. It is harder pushed than the clutch infact, it has been like this ever since I bought the car. Any ideas?


RE: Very stiff throttle HDI - powerandtorque - 26-01-2016

Unclip the cable from the TPS in the engine bay. Does the TPS turn easily and does the throttle cable move freely?

Certainly not right that it's harder than the clutch!


RE: Very stiff throttle HDI - boggs - 26-01-2016

(26-01-2016, 12:34 PM)powerandtorque Wrote: Unclip the cable from the TPS in the engine bay.  Does the TPS turn easily and does the throttle cable move freely?

Certainly not right that it's harder than the clutch!

The TPS turns easily I will unclip the cable later and see if it also moves freely. I know it isn't right I've had a HDI before and it wasn't like this lol. Its literally twice as hard to push as the clutch I would say. I have been driving it like this for months so have got used to it although it would be nice to fix lol.


RE: Very stiff throttle HDI - Toms306 - 26-01-2016

Have you had a new clutch? Surprised you can even push the throttle if its twice as heavy as a usual 306 clutch lol!

The tps's do get stiff over time, sounds like its more likely to be the cable in your case though, have fun changing that! Confused


RE: Very stiff throttle HDI - DeeTurbo - 26-01-2016

The cable will most likely be worn now but it'll be the way the cable is routed that would have caused the issue.


RE: Very stiff throttle HDI - boggs - 26-01-2016

(26-01-2016, 01:02 PM)Toms306 Wrote: Have you had a new clutch?  Surprised you can even push the throttle if its twice as heavy as a usual 306 clutch lol!

The tps's do get stiff over time, sounds like its more likely to be the cable in your case though, have fun changing that! Confused

The pedal is literally like pushing my foot against a brick wall it doesn't feel as if its moving. Its either on or its off lol

(26-01-2016, 01:06 PM)DeeTurbo Wrote: The cable will most likely be worn now but it'll be the way the cable is routed that would have caused the issue.

So a new cable is in order then?


RE: Very stiff throttle HDI - Sambarker - 26-01-2016

check for kinks in the cable route


RE: Very stiff throttle HDI - DeeTurbo - 26-01-2016

Yep new cable is needed. You could reroute it to allow for a larger curves but as the plastic liner the inner slides through is worn allowing the metal cable to rub against the metal part of the outer.


RE: Very stiff throttle HDI - boggs - 26-01-2016

(26-01-2016, 02:11 PM)DeeTurbo Wrote: Yep new cable is needed. You could reroute it to allow for a larger curves but as the plastic liner the inner slides through is worn allowing the metal cable to rub against the metal part of the outer.

Thanks a lot will do


RE: Very stiff throttle HDI - pug306driver - 26-01-2016

lucky dude, do the lottery, cos if the cable and tps refused to return to idle.....I dread to think!


RE: Very stiff throttle HDI - boggs - 26-01-2016

(26-01-2016, 03:40 PM)pug306driver Wrote: lucky dude, do the lottery, cos if the cable and tps refused to return to idle.....I dread to think!

I have lifted off before and its stuck once its been for less than a second it done it, and between gears you hear it hold the rev slightly the odd time.