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HELP, Wife is mad at me, Suburban keeps dying!


RM706
03-12-2004, 07:08 PM
Seems everytime she gets going to the store our '93 GMC Suburban 2500 4.5y 4X4 dies. Kinda looking like it hits a certain temp then goes ruf and quits. She's got a new mapping sensor and oxygen sensor. Any ideas to get me outta the dog house?

Manjit1181
02-02-2005, 08:03 AM
I don't think it's the o2 sensor, If it only sets the code when the tank is half way empty. If it was the o2 then it would give you the code, even when the tank is full.
I have the same problem with my 96 yukon.
Let me know, If you had figured it out.

84fiero123
02-02-2005, 08:59 AM
could be fuel filter, cheap fix if it is

2000CAYukon
02-02-2005, 12:19 PM
Have you tested the temp sensor? If it is reporting the wrong temp to the ECM, then the engine may not run right.

How is the idle quality? Smooth, rough?

//2000CAYukon

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