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Search Auto Parts Search 94 gmc 1500 pick up O sensor Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting dr.donut User May 30, 2019, 11:19 AM Post #1 of 5 (1010 views) 94 gmc 1500 pick up O sensor Sign In Truck runs good but the O sensor blew out of the exhaust and I can't bring it to the muffler shop till tues. The sensor is tucked away in open air and I have a patch on the opening to keep it quite , will that cause any problems with air/fuel ratio ? Will it send a bad reading and run rich ? I bought the truck 8 years ago and it never had a catalytic converter , should it have one ? , always passed inspection but it's a friend and he really doesn't scrutinize too much . Tom Greenleaf Ultimate Carjunky / Moderator May 30, 2019, 11:59 AM Post #2 of 5 (1003 views) Re: 94 gmc 1500 pick up O sensor Sign In A temp repair that should make it safe, AYOR. Look for Stainless Steel clamps like you might use for a hose. Marked on them "ss" usually but regular would do too short term. Make sure you can use two or three smaller ones end to end opening them up. Now just bent a coin as well as possible to match curve of pipe. Clamp tight right over that. Tie wires and sensor if stuck away from anything with what works and can take some heat. What you don't want it the super hot exhaust air blowing at who knows what and ruin it never mind the obnoxious noise that is HOT as it gets blowing out so stop that. A good shop will fix or made a patch (1994??!!) over the hole with a threaded hole just right and make it work again for a sensor. I really don't know how much that has to do with fuel delivery like OBDII vs a warning it isn't right and set a CEL to warn your that you are wrecking converter. Truck just has to be running well enough shouldn't make too much extra damage - the open hole would or could. > Multiple clamps is so as it tightens you can still find one to tighten should be 8mm or 5/16th is the same use a socket. Hope for the patch as taking the pipe off is near hopeless to save much right on to manifold an OMG that's too much work thing to do, Tom Hammer Time Ultimate Carjunky / Moderator May 30, 2019, 12:38 PM Post #3 of 5 (990 views) Re: 94 gmc 1500 pick up O sensor Sign In Of course it will effect the air/fuel ratio. That is the sensors job to read fuel mixture in the exhaust. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. dr.donut User Jun 5, 2019, 11:10 AM Post #4 of 5 (941 views) Re: 94 gmc 1500 pick up O sensor Sign In They cut out the small section and put in a new sleeve for the new sensor after the wrong one was delivered to them . They got the right sensor the next day . Service engine would come up when it got good and warm and would go away . Good to go now . Exhaust work is something I just don't get into anymore , an independent shop can do it for a good price . Hammer Time Ultimate Carjunky / Moderator Jun 5, 2019, 11:31 AM Post #5 of 5 (938 views) Re: 94 gmc 1500 pick up O sensor Sign In Nobody does exhaust work any more. Custom shops do it better and cheaper. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   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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