ogamer777
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- Joined
- May 22, 2016
1982 B21FT 15G KJet
I replaced all the old and cracked vacuum lines under the hood with new silicone lines. I did everything under the intake manifold, one line at a time so i wouldnt get things mixed up. Everything else was self explanatory. Went to test drive and see if it drove any better. Something isnt right. Now when i get into max boost (3.5-4psi) the car stumbles almost like its fuel cutting. Before i changed all the hoses the car would steadily stay at 3.5-4psi, with cracked lines. What could cause this stumbling and high idle after driving at max boost? It will idle at 1500 for around 2 minutes then go back to 1000. The idle is very sluggish meaning it takes a while for the rpms to drop after i press the gas pedal while idling, if that makes sense.
I did remove the distributor cap to get access to the vacuum lines under the intake manifold, but i made sure everything was how it was before i took stuff apart.
My boost gauge shows ~18 inHg for vacuum at idle. Boost tops out at 3.5-4psi.
Any thoughts on what i should check? Thanks for your help
I replaced all the old and cracked vacuum lines under the hood with new silicone lines. I did everything under the intake manifold, one line at a time so i wouldnt get things mixed up. Everything else was self explanatory. Went to test drive and see if it drove any better. Something isnt right. Now when i get into max boost (3.5-4psi) the car stumbles almost like its fuel cutting. Before i changed all the hoses the car would steadily stay at 3.5-4psi, with cracked lines. What could cause this stumbling and high idle after driving at max boost? It will idle at 1500 for around 2 minutes then go back to 1000. The idle is very sluggish meaning it takes a while for the rpms to drop after i press the gas pedal while idling, if that makes sense.
I did remove the distributor cap to get access to the vacuum lines under the intake manifold, but i made sure everything was how it was before i took stuff apart.
My boost gauge shows ~18 inHg for vacuum at idle. Boost tops out at 3.5-4psi.
Any thoughts on what i should check? Thanks for your help