SPONSORED LINKS

Engine stalls from apparent overheating

Tiny
ADMAN
  • MEMBER
  • 28 POSTS
Wouldn't the cruise control affect the throttle? I.E. When it regulates the speed, isn't it adjusting the throttle to keep the speed constant according to the cruise control setting?
Was this
answer
helpful?
Yes
No
Wednesday, March 7th, 2012 AT 1:06 AM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
I don't own a scan tool. I had it done for free at AutoZone. So there is no way I can check it while it has stopped, which is usually in busy Atlanta traffic at an intersection.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, March 7th, 2012 AT 1:13 AM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Cruise Control is an input for the ECM. So yes, the ECM then
adjusts the throttle body according to desired speed set with the
cruise control buttons.

The brake pedal, clutch pedal & cancel button all "cancel" cruise
control once the ECM "sees" an input signal from one of them.

I really don't think that the cruise control/inputs could cause
a no-start.

The most logical possibility at this time would be the Engine
Speed Sensor (crankshaft position sensor). But even it "should"
set a code when it fails.

But the only way to know if it is a bad crank sensor, is to check
its output voltage "during the time of no-start".

A good crank sensor will produce 2VAC+ during cranking speeds.
Was this
answer
helpful?
Yes
No
Wednesday, March 7th, 2012 AT 1:20 AM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
What is the ECM?
Was this
answer
helpful?
Yes
No
Wednesday, March 7th, 2012 AT 2:07 AM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Engine Control Module - Fuel Injection Computer
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, March 7th, 2012 AT 2:14 AM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
I have been suffering with this problem without any luck. But last night, the EPC light went on and the oil pressure light also
went on. I was a few hundred yards from my house so I drove on home. I checked the oil level and it appears to be ok. Also, I was told the other day that one of my brake lights is out. So I'm wondering if the multiple issues (brake light, cruise control going out, etc.) Are symptoms of the same issue.?
Was this
answer
helpful?
Yes
No
Tuesday, March 27th, 2012 AT 2:44 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
I have tried to research this issue online. I know I need to scan the engine codes, but it probably isn't a good idea to start the car and drive it to AutoZone. I saw something about scanning it with VAG-COM. I assume this is a software program and an interface cable that you plug in to read the codes. I can't afford it anyway. Plus I believe it is PC only and my laptop is a Macbook Pro.

I have found references to all of the issues that I have when I google EPC code and oil pressure, etc. References include the brake light switch and idle issues, and oil pressure issues. Any additional input is greatly appreciated.
Was this
answer
helpful?
Yes
No
Tuesday, March 27th, 2012 AT 8:30 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
One more thing. This model was recalled a couple of years ago because the sunroof wasn't draining properly. I'm wondering of water has corroded a wire somewhere.

Also, this thread isn't getting traction any more. Probably because I don't have the engine codes since I can't drive the car to AutoZone.
Was this
answer
helpful?
Yes
No
Tuesday, March 27th, 2012 AT 9:30 PM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Adman,

Sorry to hear you are still having issues!

Unless someone has run-into the "exact" issue at hand, it is difficult
to determine what the cause is.

Not all "experts" here are VW Technicians, or currently working
in the trade. Which can affect input on subject at hand.

I am full time employed, so I don't have time to post till after
work or weekends.

But again, the main thing being. Not having run into said problem
before, will affect the amount of feedback/suggestions on repair
you will receive.

Attaching tools / diagnostic equipment to a vehicle can "catch"
glitches that can not be seen over the internet.

Engine codes: AWP for 4cyl or BDF for 6cyl (at least in north america).

Thomas
Was this
answer
helpful?
Yes
No
Tuesday, March 27th, 2012 AT 11:16 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
Thanks. I wasn't complaining about the lack of responses, but expressing my understanding of why. I appreciate all the responses.

On another note. My clutch is slipping. Is there an adjustment for that or is it an auto-adjust? What are my options?
Was this
answer
helpful?
Yes
No
Wednesday, March 28th, 2012 AT 2:42 PM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
Clutch is non adjustable. Once it starts to slip, you can baby it a bit to buy some more time. But replacement is the only way to fix it.
Was this
answer
helpful?
Yes
No
Wednesday, March 28th, 2012 AT 2:59 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
I was afraid of that. I guess it doesn't hurt to continue driving it in terms of the clutch.

I just went out and started it. It started fine and no idiot lights are on. I followed the advice of someone on another site and removed/replaced the oil cap to stop the oil pressure idiot light from coming on. Apparently that worked.

It probably still is not a good idea to drive it. And I assume the engine light has to be on at the time of the code read in order to produce a code.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, March 28th, 2012 AT 4:06 PM
Tiny
INFERNO.CA
  • MEMBER
  • 1 POST
I have an '02 GTI with similar problem. The engine speed sensor seems to be the issue. It will trip the EPC light, cause stumbling idle, stalls and problems starting as well as effect the cruise control. You are looking in the right place and you will need the VW reading program to see if this is the case. The average price of the sensor is $125 area from the dealership. Probably half that from your auto parts store.
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 12:37 AM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
My main issue is this. After the engine develops heat. 20 minutes or so of driving, it will stall after coming to a stop. It will not restart until the engine has had enough time to cool back down, usually 20 minutes or so, depending on how hot the weather. A mechanic looked at it the other day and suggested that is it probably the electronic ignition module. That they can "go out" when hot. He is further researching the issue. The EPC light and oil pressure light have only gone on once and not since. I am limited to using the car for very short trips.
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 1:30 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
My money is still on the crank sensor.
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 2:08 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
Is the crank sensor subject to heat?
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 2:14 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
Nevermind. I see above (scroll up) that it is. Sorry.
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 2:16 PM
Tiny
ADMAN
  • MEMBER
  • 28 POSTS
Are the crank sensor and speed sensor the same thing?
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 2:47 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
No speed senzor is on the transaxle crank sensor is on the engine block at the crank sensor.
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 4:01 PM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
The crank position sensor is sometimes referred to as the engine speed
sensor. This was a suggested part within the first 4 posts.

Located to the right of the oil filter, mounted to the block.

Thomas
Was this
answer
helpful?
Yes
No
Wednesday, April 11th, 2012 AT 4:20 PM

Please login or register to post a reply.

Related Engine Stall While Driving Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Engine Stalls While Driving
GUIDE
Engine Stalls While Driving
An engine that stalls while driving and then starts back up again, either immediately or after a short time is different from an engine that just wont start or if the...
VIEW MORE

Sponsored links