Starts fine but when it warms up it dies, runs.

Tiny
ANONYMOUS
  • MEMBER
  • 1994 CHEVROLET BLAZER
  • 13,000 MILES
Starts fine but when it warms up it dies, runs rough, like of time. But runs great till wants up
Thursday, April 4th, 2013 AT 1:55 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since a tune-up? 02 sensors are part of a tune-up Any applicable trouble codes? If your your fully obd1 compliant, you should be able to check codes, yourself. Check the coolant temp sensor.

To check for applicable mil codes, you use a jumper wire between A & B terminals at the 12 pin datalink connector. Turn key just till the dash lites come on, no further. Then the mil on the dash starts flashing, you count the flashes to get the codes. Your looking for two digit codes.
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Thursday, April 4th, 2013 AT 2:58 PM

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