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#1
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TPS or CPS?
89 cherrokee 4.0 automatic getting intermitant starts,occasional dead stops while driving. Idles smooth,drained tank,changed filter,rotor,plugs ect. Fuel pump and coil fine.Cleaned ballast resistor. RUNS GREAT when running. WILL START WITH THE HELP OF EITHER. This leaves the sensors,taking a poll on TPS vrs. CPS. Crankshaft position sensor less expensive but I've been told its a bear to get to. No, my local junkyards won't sell electric parts!! Thanks all.
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#2
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Re: TPS or CPS?
Tps...
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#3
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Re: TPS or CPS?
I'd get a voltmeter so you can check the TPS output voltage before spending the coin...
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#4
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Re: TPS or CPS?
mieth,just happened by comput and checked forum,saw your message. THEN I bumbled onto this website,I'm amazed. http://www.lunghd.com/Tech_Articles/...iagnostics.htm
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#5
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Re: TPS or CPS?
What does the CPS look like and where is it located?
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#6
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Re: Re: TPS or CPS?
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#7
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Re: Re: Re: TPS or CPS?
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#8
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Re: Re: Re: Re: TPS or CPS?
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Allright you guys, the CPS is a master of hidden misery. It is on the bell housing,(between motor and tranny) on the drivers side and at about 11 o'clock if you are looking from behind. You have to be absolutly under the jeep,legs out by the drivers front wheel,position your head just behind bell housing and do an 'ab crunch' while looking up! Then you will see it. You may even reach up and touch it. But it takes a whole lot of doing to get a wrench on it. You need a wobbely head socket and alot of time and cursing. The guys at the junkyard suggest opening a hole in the floorpan to access it! Try this link http://autorepair.about.com/cs/faqs/l/bl557h.htm |
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#9
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Re: TPS or CPS?
OMG!! Don't cut the floor pan. I changed mine quite easily. I linked several extensions together with a universal (wobbly thingy) and the proper size socket. Came right out.
Before I disconnected the wiring, I tied a string to the TPS side of the connector. When I pulled the old TPS out, I had the string to connect the new TPS to so I could pull the wiring up above the engine. |
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#10
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Re: Re: TPS or CPS?
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#11
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Ya can change it a LOT easier if you'll support the transmission crossmember w/ a floor jack, remove the four bolts holding it in place and SLOWLY lower the transmission crossmember w/ tranny by about 1-2 inches. Be carefull not to bend stuff but dropping it this small amount will give you plenty of room.
Clean your cps connector and use some dielectric grease in it... older XJ's (primarily Renix systems) have a real issue with connector oxidation / corrosion leading to wierd electrical gremlins that often imitate sensor failure. GeorgeDexter - Thanks for posting the link to my site: www.lunghd.com . |
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#12
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Re: TPS or CPS?
thanks for the link, George. Very informative
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#13
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Re: TPS or CPS?
rotorfloat and lunghd you're both welcome. Lungy,yours is a FANTASTIC website and I hope more people visit it. G. Dexter
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#14
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Re: Re: Re: TPS or CPS?
Yikes!! I did mean CPS. Guess I did get too excited and the thought of
a sawzall slicing through the floor. lol..... |
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#15
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