Tsullappliance

Is the air flow across the heater core unobstructed and is the blower box sealed tightly? You may be pulling air from in front of the heater instead of through it with either of these problems. also flushed out heater core and good flow through it. Got a 190 thermstate in it. Chilten manual not much help.

Did you ever find the problem? Let us know when you get a chance. Thanks.

I also have (had) mice in my 87 GL 4WD. I used a Havahart mouse trap with peanut butter and oatmeal flakes. Worked like a charm. The cage/trap was 16 bucs at Tru-Valu. You can only catch one a night though. No electrical damage but they did get into the blower housing and block the evap coil. They don't need you to leave food in the car. They bring their own acorns. I didn't know I had mice until I found a four foot black snake with a full belly up under the dash!

Did you find the leak? Was it the trans cooling lines?

Mine (87 GL WGN 4X4) holds 46.3. Maybe that explains the puddle every time I leave the gas station.

I would like to thank all the people who responded to my thread. All of the info was found to be useful. I changed the plugs and pcv valve and cleaned up the contacts on the cap and rotor. It still failed for CO. I told the inspector to do what was needed to pass. He eventually got it through by adjusting the carb but he did say the carb should be rebuilt. It's brand new! When I drove the Soob away it ran like crap. Upon further inspection at home I found the timing retarded and vacuum hoses off. I timed her and replaced the hoses; she runs like brand new. This is an '87 GL with a E82 engine. I did find that there is a problem with non Soob PCV valves. It's best to go OEM on this minor part. Thanks to the person who brought that to my attention. I also found a first edition HTKY Soob Alive at a yard sale. If anyone could use some info out of it please let me know. Thanks again to all. Tom

Does anyone know the part numbers for an air control vacuum valve and a bowl vent vacuum valve.? This is for a 1987 GL wagon with an automatic, A/C, and 4W/D. Engine family: HFJ1.8T2AFK4. Emissions family: LU with EGR/AIV/OC. The part names were obtained from the hood sticker. Thanks!

No O2 sensor

Sorry about that: HC ppm 20 with 216 as the limit. CO% 3.19 with 1.84 as the limit. NO ppm 6 with 3135 as the limit. These were all at 15mph. When the mph was brought up to 25mph the Co% dropped to 2.16 with 2.39 as the limit. NO ppm dropped to zero at 25mph and HC ppm went to 23 with 210 as the limit. I did replace the PCV valve and plugs (two carbon fouled) this weekend and cleaned the cap electrodes and rotor. Was going to replace the cap and rotor but they gave me the wrong parts.The air filter was changed also. The plugs I put in were NGK BPR6ES-11. I also sealed each end of the plug wires with di-electric grease. The oil and filter were changed last weekend and the exhaust is brand new, including the cat. From what the previous owner told me, this CO problem has persisted for a number of years and his mechanic would tweak something to get it to pass.The plugs were gapped to .044 and needless to say the car has much better pick-up. The carb adjustment has me puzzled in that you have to back out the mixture screw quite a ways to get the engine perfectly smooth. One more thing, I did replace some brittle and cracked vacuum hoses including the one to the PCV valve. Hope I didn't bore you to tears with too much information.The tune-up work was done after the test, so who knows. Maybe it will pass now. Im going to replace the air control vacuum valve and the bowl vent vacuum valve before bringing it back. At thirty dollars a pop these damn tests get expensive! I wish you could test it before going back to the shop. Tom

When you say meter, do you mean a vacuum gauge of some sort? If so, would the highest vacuum mean the best mixture? I've balanced carbs on other makes but they had two or three carbs and could be very tempermental. I will change the plugs and the PCV today and let you know how it works out. Thanks again!

Thanks, I'll let you know how it turns out. Can't swing the carb before the end of the month so I'll try the the alcohol.

Hi everyone. Thanks for reading this. My '87 Gl 2bbl has a high CO% reading. In the state of Virginia we must have the tailpipe emissions checked every two years in some countys.Is there a way to adjust the air/fuel mixture so it doesn't run so rich? The car passed at 25mph but not at 15mph. Any help would be greatly appreciated.