Slightly higher than normal idle...
#1
Slightly higher than normal idle...
99 Jimmy, 4.3L engine, 4x4.
Have had this issue for awhile, and the tune up I did didn't seem to take care of the problem.
For reference, I changed:
Cap
Rotor
Spark Plugs
Spark Plug Wires
Air Filter
Cleaned the MAF
Cleaned the Throttle Body
Made a big difference, but didn't clear up my issue.
Normally, I see 625-675 RPM when warm, according to my handheld scanner. However, lately I have been sitting in around 950-1000RPM after a 15 minute drive home from work.
Anyone know why this is? Any tips would be appreciated, can't seem to nail this one down. Not a major issue, but that tach sitting in the wrong spot just seems to grate on my nerves a little.
Have had this issue for awhile, and the tune up I did didn't seem to take care of the problem.
For reference, I changed:
Cap
Rotor
Spark Plugs
Spark Plug Wires
Air Filter
Cleaned the MAF
Cleaned the Throttle Body
Made a big difference, but didn't clear up my issue.
Normally, I see 625-675 RPM when warm, according to my handheld scanner. However, lately I have been sitting in around 950-1000RPM after a 15 minute drive home from work.
Anyone know why this is? Any tips would be appreciated, can't seem to nail this one down. Not a major issue, but that tach sitting in the wrong spot just seems to grate on my nerves a little.
#2
Air/idle sensor on side of Throttle body. Its a round sleeve that 2 types I believe. 1 unbolts on the side and the other has a bolt that holds it in. Be careful when removing wiggle it out. It has a rubber gasket that you'll reuse and have to grease it. Its just a plunger that gets carbon built up on it and can't be cleaned from the T/B. Hope this helps!
#3
Air/idle sensor on side of Throttle body. Its a round sleeve that 2 types I believe. 1 unbolts on the side and the other has a bolt that holds it in. Be careful when removing wiggle it out. It has a rubber gasket that you'll reuse and have to grease it. Its just a plunger that gets carbon built up on it and can't be cleaned from the T/B. Hope this helps!
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m3t4lm4n222
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
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06-22-2014 02:56 PM