1990 Questions for all other cars car wont start when hot

Tiny
COLMAN1001
  • MEMBER
  • 1990 ALL OTHER MAKES ALL OTHER MODELS
  • 4 CYL
  • 4WD
  • MANUAL
  • 280,000 MILES
I have a 1990 holden jackaroo 2.6 petrol it runs fine untill you turn it off on a hot day and it wont produce a spark for about 40min when the engine cools down it doesnt overheat and doesnt stall when hot either and no local mechanic has ever heard of this problem can you please help me with my problem.
Sunday, April 20th, 2008 AT 12:13 AM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
I do not know what a holden jackaroo is but I'll give it a shot.
When you shut off an engine it actually gets hotter because there is no coolant flowing, or, if the engine is air cooled, there is no air flow. If your engine has a distributer cap try changing it. It may be cracked. If your engine has coil packs test each coil pack for the proper resistance at the highest temperature recomended.
A small distributer cap crack can expand enough to cause a spark failure. A bad ignition coil will do the same. Check the ignition module also.
The heat is causing something to expand too much.
Was this
answer
helpful?
Yes
No
+1
Sunday, April 20th, 2008 AT 2:16 AM

Please login or register to post a reply.

Related Engine Not Running Content

Car Cranking but Not Starting? Try This
VIDEO
Car Cranking but Not Starting? Try This
Instructional repair video
Engine Not Starting
GUIDE
Engine Not Starting
Over the past 20 years at 2CarPros we have identified the top problems that are easily fixed. This guide can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE