Idle/stumble problem
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Junior Member
Joined: Oct 2003
Posts: 54
Likes: 0
From: Phoenix
Car: 1985 K5 Blazer
Engine: 350 crate w/TPI MAF
Transmission: 700R4/NP208
Idle/stumble problem
I went and fired my truck up after getting the TPI installed and I am having stumbles off idle and it is just running like crap.
So I tried disconnecting the MAF sensor and my idle got better and my stumble has been eliminated. Does this mean my MAF is bad? I am just running a cone K&N on the end of my MAF right now, but it does it with or without the filter installed. Thanks
Harley
P.S. The truck is an 85 K5 Blazer with 350 that I converted to 88 MAF TPI from a Firebird.
So I tried disconnecting the MAF sensor and my idle got better and my stumble has been eliminated. Does this mean my MAF is bad? I am just running a cone K&N on the end of my MAF right now, but it does it with or without the filter installed. Thanks
Harley
P.S. The truck is an 85 K5 Blazer with 350 that I converted to 88 MAF TPI from a Firebird.
Supreme Member
Joined: Dec 2003
Posts: 1,249
Likes: 1
From: Kenosha Wi
Car: 91 RS
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 10 bolt
It sounds to me like you have a bad MAF sensor do you have the ALDL under the dash? if so it should read a code 34 if it does replace the maf sensor. that should be it.
Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Nice truck. I've got an '87 K5.
Sounds like a bad MAF to me. Check for codes as mentioned.
Sounds like a bad MAF to me. Check for codes as mentioned.
Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Oh, and that's just the stuff I listed. It doesn't count the 1917 Model T Ford truck I've got that I'm waiting to sell. I also had a '74 Nova SS that I'm mostly finished parting out, but the shell is still taking up space in my garage. My old 5.0 Mustang is still around too. I sold it to my brother, but he hasn't done anything with it, so at this point I think it's as much mine as it is his, given all the work I put into it before the motor went south.
I am a recovering autoaholic. I haven't bought a new vehicle in about two years, but I'm still just taking it one day at a time.
I am a recovering autoaholic. I haven't bought a new vehicle in about two years, but I'm still just taking it one day at a time.
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