2 Xjs with High idle
#46
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Year: 1990
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Ahh I see. So Im currently in the process of the rear main seal and I cant get the pan off for the life of me. Iv tried screw drivers, pry bars, scrapers, jack handle on the side of the pan pushing it and everything and only the front 1/4 of the pan moves. What do I do?
#47
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Year: 1990
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At my shop we use a sealant ad we use heat to get it off try that. And I got the o2 sensor replaced the old sensor wa not very tight at all ?!
#48
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Year: 1990
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I noticed in the bottom of my oil pan i got about 1/4" of sludge and fine metal dust. Not goood....
#49
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How many miles ? I got my o2 in and let's see fight helps I notices a lil better throttle response. An. Car quest carries a tps for our engines. It has the plug for both auto and manual trans. So I bet some one plugs in both connectors on one some time.
#51
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Year: 1990
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RENIX TPS ADJUSTMENT
Before attempting to adjust your TPS be sure the throttle body has been recently cleaned. It's especially important that the edges of the throttle butterfly are free of any carbon build-up.
IMPORTANT NOTE: With the Key OFF, and using the positive (red) lead of your ohmmeter, probe the B terminal of the flat 3 wire connector of the TPS. The letters are embossed on the connector itself. Touch the black lead of your meter to the negative battery post. Wiggle the wiring harness where it parallels the valve cover and also over near the MAP sensor on the firewall. If you see more than 1 ohm of resistance, or fluctuation in your ohms reading, some modifications to the sensor ground harness will be necessary. The harness repair must be performed before proceeding. I can provide an instruction sheet for that if needed.
MANUAL TRANSMISSION:
RENIX manual transmission equipped XJs have only a flat three-wire TPS mounted on the throttle body and it provides data input to the ECU. It has three wires in the connector and they're clearly embossed with the letters A, B, and C. Wire "A" is positive. Wire "B" is ground. Key ON, measure voltage from "A" positive to "B" ground by back-probing the connectors. Note the voltage reading--this is your REFERENCE voltage. Key ON, back-probe the connector at wires "B" and "C". Measure the voltage. This is your OUTPUT voltage. Your OUTPUT voltage needs to be seventeen percent of your REFERENCE voltage. For example: 4.82 volts X .17=.82 volts. Loosen both T-20 Torx screws attaching the TPS to the throttle body and rotate the TPS until you
have achieved your desired output voltage. Tighten the screws carefully while watching to see that your output voltage remains where it is supposed to be. If you can't achieve the correct output voltage, replace the TPS and start over.
Sometimes, after adjusting your TPS the way outlined above, you may experience a high idle upon starting. If that happens, shut the engine off and reconnect your probes to B and C. Start the engine and while watching your meter, turn the TPS clockwise until the idle drops to normal and then rotate it back counterclockwise to your desired output voltage.
AUTOMATIC TRANSMISSION: RENIX automatic transmission equipped XJs have a TPS with two connectors. There is a flat three-wire connector, same as the manual transmission vehicles have, and it is tested the same as the manual transmission equipped vehicles, as outlined above—FOR ALL ENGINE MANAGEMENT RELATED ISSUES.
However, the automatic TPS also has a square four-wire connector, clearly embossed with the letters A,B,C, and D. It only uses three wires and provides information to the Transmission Control Module. THIS SQUARE FOUR WIRE CONNECTOR IS USED FOR TRANSMISSION/SHIFTING RELATED ISSUES ONLY. Key ON, measure voltage between "A" positive and "D" ground. Note the voltage. This is your REFERENCE voltage. Back-probe the connector at wires "B" and "D". Measure the voltage. This is your OUTPUT voltage. Your OUTPUT voltage needs to be eighty-three percent of your REFERENCE voltage. For example 4.8 volts X .83=3.98 volts. Adjust the TPS until you have achieved this percentage. If you can't, replace the TPS and start over. So, if you have an automatic equipped XJ your TPS has two sides--one side feeds the ECU, and the other side feeds the TCU.
FOR AUTOMATIC TRANSMISSION RELATED ISSUES: Check the square four-wire connector side of the TPS.
If you have ENGINE ISSUES check the flat three-wire connector side of the TPS.
For those with a MANUAL TRANSMISSION--the TPS for the manual transmission XJs is stupid expensive. You can substitute the automatic transmission TPS which is reasonably priced.
Revised 09-22-2012
#52
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Ok. So the auto one has two connectors and the manual has one ? Jeep dealer said that try canceled the part number and Carquest has them in stock so ill get one there it's 50$
#53
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[QUOTE="cruiser54;2489136"]
Here cruiser tell me what you think......
:'(
The top pic is the small peice that chipped off. Im concerned if I put it all back together the remainder peice holding the seal will just spew oil.
Also I loosened the back 2 bearing caps and rotated the crank and that seal wont budge.
Here cruiser tell me what you think......
:'(
The top pic is the small peice that chipped off. Im concerned if I put it all back together the remainder peice holding the seal will just spew oil.
Also I loosened the back 2 bearing caps and rotated the crank and that seal wont budge.
#54
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If I'm seeing things as I should after 3 glasses of wine, the broken piece is outboard of the seal area.
https://www.cherokeeforum.com/f2/rea...l-stuck-89194/
https://www.cherokeeforum.com/f2/rea...l-stuck-89194/
#55
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If I'm seeing things as I should after 3 glasses of wine, the broken piece is outboard of the seal area.
https://www.cherokeeforum.com/f2/rea...l-stuck-89194/
https://www.cherokeeforum.com/f2/rea...l-stuck-89194/
#56
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If I'm seeing things as I should after 3 glasses of wine, the broken piece is outboard of the seal area.
https://www.cherokeeforum.com/f2/rea...l-stuck-89194/
https://www.cherokeeforum.com/f2/rea...l-stuck-89194/
#57
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#58
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Ok so o2 sensor didnt do anything i figure it would need one anyway so no biggie next would be geting the tps on friday and tonight im getting an new tb gasket so i can properly clean the tb and adjust the butterfly and junk. And then the tps adjust. The idle has lessesnd the intensity with the o2 sensor but not the frequency its actually increased now im about 1k - 1200 more often than i was before but it never gets above 1200
#59
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Ok so o2 sensor didnt do anything i figure it would need one anyway so no biggie next would be geting the tps on friday and tonight im getting an new tb gasket so i can properly clean the tb and adjust the butterfly and junk. And then the tps adjust. The idle has lessesnd the intensity with the o2 sensor but not the frequency its actually increased now im about 1k - 1200 more often than i was before but it never gets above 1200
Id check all the manifold bolts to see if they are loose. Also you can use some propane around all the gaskets and inlets and see if it fluctuates.
#60
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Ive tried i have come up with no vac leaks at all . Having really bad throttle drop outs when im giving it gas and letting out the clutch it ill just stop reading it seems like