volkswagon 7 Posted September 15, 2010 I tried using my cruise control on my way home from work tonight and it set a about 90 km/h. Nothing faster but I could use the accel button to speed it up. Played with it some more and then it wouldn't do anything. The odometer readout showed that it would turn on and off. In the morning I was pulling a trailer so I didn't try it then so I can't remember when the last time I used it. Any ideas? Share this post Link to post Share on other sites
guesswho512 2 Posted September 15, 2010 check your vacuum lines. the vacuum pump sits behind the power steering pump. there is a thick vac line that comes out of the pump, up to the cowl on the drivers side. at the cowl there is a T. at the T on side goes to the AC and the other to the cruise. Share this post Link to post Share on other sites
volkswagon 7 Posted September 16, 2010 Ok I'll check that as soon as my truck is home from the doctor. Having tranny issues:mad: Share this post Link to post Share on other sites
Mopar1973Man 5,567 5 Vehicles Posted September 17, 2010 Vacuum line issues are normally pointed out quickly because the vent controls always land on DEF regardless of the vent control setting. The other problem that does occur is housing rots from the battery acid or the wiring corrodes... Share this post Link to post Share on other sites
guesswho512 2 Posted September 17, 2010 when you have the cruise on, does the ECM/PCM use the APPS? if you have an APPS related DTC, would the CEL come on? Share this post Link to post Share on other sites
elshadow001 0 Posted September 17, 2010 What is this km/h stuff? Press One for English! --- Update to the previous post... How many km/h are on a clock! It is 20 km/ past twelve! Hmmmmmmmmmm! Share this post Link to post Share on other sites
Mopar1973Man 5,567 5 Vehicles Posted September 17, 2010 when you have the cruise on, does the ECM (Engine Control Module)/PCM (Powertrain Control Module) use the APPS(Accelerator Pedal Position Sensor)? if you have an APPS related DTC (Diagnostic Trouble Codes), would the CEL (Check Engine Light) come on? Little better Elshadow??? On 98.5 and 99 they use APPS sensor for cruise after that I think in 2000 they switched and the PCM diectly controls the ECM and omits the APPS sensor out right. Share this post Link to post Share on other sites
guesswho512 2 Posted September 17, 2010 On 98.5 and 99 they use APPS sensor for cruise after that I think in 2000 they switched and the PCM diectly controls the ECM and omits the APPS sensor out right. so if i had a faulty APPS...it would show up during cruise control? Share this post Link to post Share on other sites
