1998 GMC Sierra 1500 Low Idle, then dies
I drove my GMC Sierra (1998) round trip two days ago about 250 miles,
which is more than usual As I got off the interstate and was stopping at the
stop sign, I noticed it wanted to idle low and was afraid it was going to die. I
put it in neutral to keep it revved. I kept it revved each time I had to slow
down significantly until I arrived at home. Once at home, I stopped the truck
and it died. I did notice some oil under the truck, which is the first time I've
noticed it. After checking the oil, it shows more needed to be added. I
purchased the high mileage Castrol and put some in yesterday but it
continues to idle low. Please give me suggestions on what I need to do.
Thanks in advance.
Which engine is in the vehicle? if it has the 2 injectors on top of the throttle body then one of the injectors could be bad. Or it could just need the throttle body cleaned.
This could be a clogged fuel filter,dirty throttlle body or bad throttle position sensor.
Thanks for the help. I really appreciate it.
After looking it over with a mechanic, we noticed that cylinder 7 was misfiring and the rod is bent.
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