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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...   2020 suburban new transmission and issues after install recently had the transmission fail at 11...   Caliper piston post cleaning won't screw in Hello, 2013 Hyundai Elantra limited (ma...

Search Auto Parts Search vacuum lines Sign up here!   Email This Post Auto Repair Home>> Truck Repair>> Truck Repair Advice jeffbo New User Mar 22, 2006, 4:33 AM Post #1 of 5 (4121 views) vacuum lines Sign In There is not a sticker under the hood. Whoever had it before me must have removed it. No, I did not pull them all off. DanD Veteran / Moderator Mar 22, 2006, 7:36 AM Post #2 of 5 (4116 views) Re: vacuum lines Sign In Here a diagram for the emission’s vacuum routing. Hope it helps. Dan. Canadian "EH" jeffbo New User Mar 22, 2006, 8:55 AM Post #3 of 5 (4108 views) Re: vacuum lines Sign In Thank you Dan, I appreciate it. Are there vacuum lines that open and close the vents also? When I change from vent to defrost, or vice versa, I get a delayed reaction. It can sometimes take up to 2-3 minutes before it changes. DanD Veteran / Moderator Mar 22, 2006, 2:01 PM Post #4 of 5 (4105 views) Re: vacuum lines Sign In I don’t think that the 98 pick-up uses vacuum motors to actuate the mode door(s) it’s all electric motors now. As far as what’s going on with yours I don’t know? I’ve just had a look at a couple of the test procedures and they can be a bit involved so again I wouldn’t be able to tell you where to start looking unless I was under the dash with you. Here a diagram of the heater box. Dan. Canadian "EH" jeffbo New User Mar 23, 2006, 4:56 AM Post #5 of 5 (4097 views) Re: vacuum lines Sign In Thanks again Dan! I'll take a look at this. I had a '99 Astro that would have problems with a vacuum line breaking that was located right behind the alternator to close to the block. When it broke it would cause the mode doors to default to the windsheild defrost position. This happened more than once. I assumed the truck would have the same type of fix but I couldn't find anything under the hood. Jeff   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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