According to the haynes manual, there is a 3-pin diagnostic terminal under the dash on the drivers side. Jump pins 1 and 3, and read the CEL codes. Example: 1 long flash, 2 short flashes equals code 12.
The O2 sensor is on the downpipe of the exhaust just before the catalytic converter. There should only be one for the 95 model. Kneel next to the drivers door and poke your head under the truck. You should be able to see it. Its the thing with the wires coming out of one end.
I looked all up under the dash and still don't see it (data link).I also have the Haynes manual but have had no luck.
I'll have to find the O2 sensor tomorrow, it's dark now.
I'm having a bad surge-hesitation when accelerating hard or climbing hills and black smoke out the tail pipe.CEL will come on sometimes and go right back out, I'm thinking a bad O2 sensor. I put new plugs in it and it ran fine for 2 days, but on the interstate at a high speed acceleration it started again. Just put plug wires on it about 4 months ago, so I don't think they are the culprit.
I'd get the O2 sensor socket. It made it real easy for me. I wished i had done that on the first two I changed. The only reason I got it was I couldn't get a wrench on the last two. The socket made it a quick job. My new O2 sensor came with the anti-sieze already on the sensor.
Yeah, I'm going to get the o2 SOCKET. Advance has a tool loan program, you put down a deposit on the socket, when you take the socket back, you get your money back. The new O2 sensor has the anti seize on the threads.
Well, got the new o2 sensor in and she is running good as new now . I hope that was all that was wrong.
I just replaced the timing belt, idler pulley, tensioner push rod,tensioner pulley, water pump, new gates drive belts, radiator hoses, spark plugs, and now the oxygen sensor.
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