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Mchardtke

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About Mchardtke

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  1. Yes, that is correct. Sorry I have been out of town so I couldn't get back to you sooner. There is no markings on the ISA test tool so I would say it is aftermarket, I tried it on the ISA and to works great. Well all seems to be working well I haven't had any Hiccups sense I worked on the gas tank and went to 87 octane. I really don't know if it was a gas issue or an ejector issue but no more issues knock on wood. Thanks for your input and I will keep you posted as things progress and thanks again for your great advice Moses take care.
  2. Moses, also there is suction when I put the palm of my hand over the oil filler cap hole at an idle.
  3. Moses, thanks I knew if anyone would appreciate this Jeep Wrangler besides the wife and myself would be you. What CC pressure would you expect to see and I do have one of the PCV picture below and at an idle it is in GREEN SAFE and when riv the engine it go's into the DANGER RED. Also I found my ISA tester to activate the forward and reverse of the motor. I found I had a growling noise at the ISA motor so I order one from RockAuto ( which is AWESOME) and will replace and adjust the ISA motor for full extension at 3500 rpm. Sorry about the jumping from one subject to another I thought you may be interested, thanks again Moses and look forward to hearing from you!!
  4. Moses, I do have a Snap-on tech that I had to do some work on and now it is working, I will let you know what I find, Thanks. By the way here are some pictures of the Jeep, I had to fabricate a battery hold down which turned out OK. I still get a slit oil leak from the new factory oil cap so I believe I will put some more Seafoam into each cylinder to see if there is still some ring or carbon issues that may be causing some undo cc pressure. I haven't had time to do a leak down test yet still working on other areas like the rear track bar, that was fun to remove on the passenger side. PS here is what the spark plugs look like as well thanks for you help and time I really it, talk to you soon.
  5. Moses, I just click on the .mp4 video and it played fine, maybe you need to download a codec for this thanks.
  6. Moses, thanks for your time and valued advice, I will run the tests you provide me and let you know what I fine. Quick question on the RPM difference between the Snap-on MT2500 and the Jeeps RPM gauge of up to 500 RPM (example: Gauge 2500 rpm - Snap-on MT500 RPM 1768 RPM any advice, and thanks again your articles are very informative and just as useful !!!
  7. Moses, I made a video of the Snap-on MT2500 scan tool readings maybe this will help in the RPM issue. Here is some history of the 89 Jeep Wrangler YJ 2.5L. I have what i call a hiccup when idling or driving every once in awhile. The engine is usually warm to operation temp and will hesitate or act like it dies ( rpm drop at an idle to 200 rpm or so) while idling in the drive way. Sometimes will die but will start right back up and there is days when it dose this hiccup while i am going 25 or 45 mph or what ever speed and has no rhyme or reason. Here is what I have replace or trouble shoot with a multi-meter (analog and digital meters), i check and replace vacuum hoses where needed and replace 4 small hoses on the TBI. Clean the crank sensor, replace MAT sensor, installed MAP sensor but ended up not using so replace with original. I compression check each cylinder and had 95 to 100 psi per cylinder. I put Seafoam in each cylinder and let sit overnight. Did this twice to get rid of the blow-by and it hasn't consumed any oil in 1000 miles spark plugs look good too, light colored. The Plastic valve cover was replace with an new oil cap as well because of oil being push out thru the oil cap. After the Seafoam treatment I check compression and found it went up to 110 in each cylinder. The engine has no leaks and no noise of any kind that would point towards replacing it. Also put Seafoam in the gas and poured some into the TBI. This seem to work quite will for smoothing out the idle and performance. I have real good acceleration. Previous owner replace the spark plugs, wires, rotor and cap, O2 sensor, belts, and change all drive train fluids to synthetic and oil change with Valvoline 10-30. I Check grounds under hood and they look great. The engine idles about 800 rpm. I borrowed a Snap-on MT2500 and scan it but really nothing stands out. When the jeep is running I wrote down the readings from the MT2500 and notice the ST Fuel trim 126 and LT Fuel trim 133 steady. I listen to the TBI with the air horn off and sounds like a hissing noise when the engine starts to hesitate or stall, but will start right up. Kind of out of answers other than the TBI needs replace and I have plenty of power on the highway and thru the whole power band from start to 80 mph. I removed the gas tank because the sending unit was showing incorrect gas level so I tested the gauge and the sending unit and found the baffle in the tank was the issue, so I removed it and check all the fuel lines and the vents and all is good and not plugged up. Gas gauge reads correct now and it seems to run pretty good today as I drove it for about 10 miles. What is your thoughts, thanks. VID_20161029_134408091.mp4 VID_20161029_134128876.mp4
  8. Moses, I made a video of the Snap-on MT2500 scan tool readings maybe this will help in the RPM issue. Here is some history of the 89 Jeep Wrangler YJ 2.5L.  I have what i call a hiccup when idling or driving every once in awhile. The engine is usually warm to operation temp and will hesitate or act like it dies ( rpm drop at an idle to 200 rpm or so) while idling in the drive way. Sometimes will die but will start right back up and there is days when it dose this hiccup while i am going 25 or 45 mph or what ever speed and has no rhyme or reason. Here is what I have replace or trouble shoot with a multi-meter (analog and digital meters), i check and replace vacuum hoses where needed and replace 4 small hoses on the TBI.  Clean the crank sensor, replace MAT sensor, installed MAP sensor but ended up not using so replace with original. I compression check each cylinder and had 95 to 100 psi per cylinder. I put Seafoam in each cylinder and let sit overnight. Did this twice to get rid of the blow-by and it hasn't consumed any oil in 1000 miles spark plugs look good too, light colored. The Plastic valve cover was replace with an new oil cap as well because of oil being push out thru the oil cap. After the Seafoam treatment I check compression and found it went up to 110 in each cylinder. The engine has no leaks and no noise of any kind that would point towards replacing it.  Also put Seafoam in the gas and poured some into the TBI. This seem to work quite will for smoothing out the idle and performance. I have real good acceleration. Previous owner replace the spark plugs, wires, rotor and cap, O2 sensor, belts, and change all drive train fluids to synthetic and oil change with Valvoline 10-30. I Check grounds under hood and they look great. The engine idles about 800 rpm. I borrowed a Snap-on MT2500 and scan it but really nothing stands out. When the jeep is running I wrote down the readings from the MT2500 and notice the ST Fuel trim 126 and LT Fuel trim 133 steady. I listen to the TBI with the air horn off and sounds like a hissing noise when the engine starts to hesitate or stall, but will start right up. Kind of out of answers other than the TBI needs replace and I have plenty of power on the highway and thru the whole power band from start to 80 mph. I removed the gas tank because the sending unit was showing incorrect gas level so I tested the gauge and the sending unit and found the baffle in the tank was the issue, so I removed it and check all the fuel lines and the vents and all is good and not plugged up. Gas gauge reads correct now and it seems to run pretty good today as I drove it for about 10 miles.  What is your thoughts, thanks.  

    VID_20161029_134408091.mp4

    VID_20161029_134128876.mp4

    1. Moses Ludel

      Moses Ludel

      Mchardtke...Could not open the video files, but your analysis is very detailed...Please do me a favor and post this note at the Wrangler YJ forum.  I would like to walk through the analysis and respond in a way that others can also benefit.

      Let's pursue this, I'm happy to respond, I'll watch for the post...Also try posting the .mp4 files at the topic.  I'll see whether I can open the files.

      Moses

    2. Moses Ludel

      Moses Ludel

      Mchardtke...I found your post and am answering it now...Thanks for posting at the YJ Wrangler forum.

      Moses

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