- #1103 of 1216
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Re: Will not run [calicago]
by nikia_mm
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Jul 06, 2009 (7:43 pm)
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Replying to: calicago (Jul 06, 2009 5:24 pm)
You might want to try the mass air flow sensor. I recently had a similar problem with my car at first I was told it was the alternator but after changing that and no luck, I took the car and had a diagnostic test performed which showed there was a problem with the mass air flow sensor. My car would start and run for a very short amount of time and then just cut off prior to changing the mass air flow sensor. Now that has been replaced she runs with no problem, except for this new problem of thick white smoke coming from the tail pipe. I hope this is helpful, oh yeah if you have the diagnostic test and it shows the mass air flow sensor I recommend changing it yourself, I took mine to a well known repair company and they quoted my the price of $1130 stating that the part would be $960 alone, I ended up performing the repair myself for a total of $67 (50 for diagnostic and 17 for part from junk yard)
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- #1104 of 1216
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Re: problem codes U2108 P0705 [phil2400]
by ledc101
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Jul 06, 2009 (7:52 pm)
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Replying to: phil2400 (Feb 12, 2009 4:11 pm)
so is that what you do whn the U2108 code is one because on my 2000 cadillac catera has the ABS,TC CHECK ENGINE, and my speedometeor, and my coolant light is on and i dont know what to doo.... i got it checkd for the codes and it says U2108 so how do i solve it i need help plzzz thank???
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- #1105 of 1216
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Re: Will not run [nikia_mm]
by calicago
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Jul 07, 2009 (2:50 am)
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Replying to: nikia_mm (Jul 06, 2009 7:43 pm)
Realy did it high rev at idel first once it was turn off nothing it just crank would not run no fuel going through system at all  
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- #1106 of 1216
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Hey gn guru
by calicago
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Jul 07, 2009 (10:03 am)
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Have you ever had anything like this . the cps was changed the fule pump was change still no fuel to EVAP or fuel rails looking at either both relays or ECM all other fues are fine just one 134 relay is bad but that's just for the radio . It all started with it high reving at idel. If you can look in book one and see what are the trouble shooting procedures . thanks 
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- #1107 of 1216
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Thick White Smoke [nikia_mm]
by nikia_mm
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Jul 07, 2009 (7:37 pm)
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Replying to: nikia_mm (Jul 05, 2009 3:37 pm)
Any suggestions would be greatly appreciated. My 97 Catera is producing an enormous amount of thick white smoke from the tail pipe, prior to this it had been smoking from under the hood for the first 5-10mins upon driving but once on the expressway it would cease, also I could smell oil burning. We checked the oil and the level is fine, coolant level is fine and there is no visible water/oil mixture on the oil stick. Any suggestions to what this might be
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- #1108 of 1216
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Code U2108
by ledc101
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Jul 08, 2009 (6:44 am)
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so is that what you do whn the U2108 code is one because on my 2000 cadillac catera has the ABS,TC CHECK ENGINE, and my speedometeor, and my coolant light is on and i dont know what to doo.... i got it checkd for the codes and it says U2108 so how do i solve it i need help plzzz thank???
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- #1109 of 1216
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Re: Code U2108 [ledc101]
by gnguru
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Jul 08, 2009 (9:00 am)
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Replying to: ledc101 (Jul 08, 2009 6:44 am)
Any "U" code means there is a communication problem. This is the ability of all the modules of the vehicle to communicate with each other. Any time you get a "U" code stored, it is necessary to connect a scan tool capable of looking at every module on the vehicle to determine where the problem is. If you don't have a capable scan tool, I would suggest a top notch repair facility or even your Cadillac dealership. Actually, once you diagnose the cause of the "U" code, there is a good chance it may clear up all your other problems. Good luck.
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- #1110 of 1216
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Re: Hey gn guru [calicago]
by gnguru
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Jul 08, 2009 (9:30 am)
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Replying to: calicago (Jul 07, 2009 10:03 am)
I'm not really exactly sure what you're saying. When you say "cps", I assume you're referring to the Crankshaft Position Sensor which is actually called a "CKP", right? When and if you installed a new CKP, are you sure the wiring is snug and tight with no breaks in the wiring and generally it is better to reroute the harness and not put it back the same way as the factory installation. When I say reroute it, the main thing is to be sure that it doesn't come into contact with any of the exhaust manifold. If no signal is getting to the CKP, it doesn't know that the engine is cranking and will not kick in the fuel pump which would mean no fuel. Also, have you changed out the in-line fuel filter? Might try that next.
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- #1111 of 1216
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Re: Code U2108 [ledc101]
by phil2400
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Jul 08, 2009 (4:28 pm)
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Replying to: ledc101 (Jul 08, 2009 6:44 am)
This code (U2108) is a communications error with the ABS module. This goes hand-in-hand with the TC and ABS lights and code P0500. The VSS is wired to the ABS first, then carries over to the ECU and speedometer. I found this out the hard way with a buddy's Catera. When the ABS module has communications errors, the speedometer loses signal from the Vehicle Speed Sensor (VSS).
There is hope. We called www.bba-reman.com, and they were able to fix the ABS controller. This is the black plastic box on the ABS module mounted down on the car's frame rail on the driver's side. They have DIY instructions on their website to remove the controller without removing the valve assembly and motor. This means you don't need to remove any brake lines or crack any of the lines open. Mail off the controller, and they rebuild it, test it, and warranty the work for a year, and send it back. According to them, you can still drive the car without the module. They charged us $169, which included return postage. This fixed the ABS, TC and CEL lights.
For the coolant light, check the coolant level in the reservoir. If it is fine, then the sensor may be bad. It is mounted to the bottom of the reservoir.
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- #1112 of 1216
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Re: Hey gn guru [gnguru]
by calicago
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Jul 08, 2009 (8:50 pm)
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Replying to: gnguru (Jul 08, 2009 9:30 am)
Yes Yes and YES new fuel filter new relays Have not Performed the other test yet being the service manual is very vauge on details and pics  Before I replace a shut off vavle or pressure swich I will finish the testing Just thought you where more incline with the fuel system
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