CAUSEDODGEPATTERNBALDNESS
Status
Offline
Just swapped out everything in a friend's '98 a couple weekends ago and it was doing the same thing. Turns out I'd forgot to put the lower vacuum hose back on the one on the far left for the floor vent. That still didn't fix it, but when I took the defrost lines loose and plugged them back up again everything started working again... Start at the line that goes through the firewall and make sure everything has vacuum from there back before pulling it all back apart and replacing everything.