1979lee Posted August 26, 2011 Report Share Posted August 26, 2011 98 lumina 3100v6 my temp and fuel gauges have gone goofy on me here latly. the gasfuel gauge has been acting up for mounths now (1/2 will show full) or bounce around e to f and back . now my temp gauge is messing up, the cars not overheating, shes running very well. ive got the tach gauge cluster. i swapped it in around january 2011 it was used and out of a 97 monte carlo, it was clean and it looked good i put my spedo in the cluster and installed it , worked well for a long time , now this crap.... any thoughts? iam more worried about the temp gauge than the gas gauge do i need to replace my temp sendor? if so where it that located on the engine? i may go out and get me another cluster............ thanks all, you have hel;ped my with my lumina many times and i thank all of you Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted August 26, 2011 Report Share Posted August 26, 2011 The fuel gauge is likely the fuel sender in the tank. Either a bad ground or a failing unit is causing the gas gauge to bounce around like that. I just had to get mine replaced. Quote Link to comment Share on other sites More sharing options...
1979lee Posted August 26, 2011 Author Report Share Posted August 26, 2011 yeah i had thought the same thing if my fuel pump ever fails ill get to that sendor Quote Link to comment Share on other sites More sharing options...
Addicted2bass Posted August 26, 2011 Report Share Posted August 26, 2011 There should be a temp sensor on the intake and one on the heads. The one on the heads I believe is the one that the guage gets its information from. At least this is the case on the 3.1 engine. Quote Link to comment Share on other sites More sharing options...
urbex Posted August 26, 2011 Report Share Posted August 26, 2011 Beings that you never had an issue before you swapped clusters, I'd look at that first... Do you still have your old cluster? Might want to throw that back in it and see if the problem goes away. Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 1, 2011 Author Report Share Posted September 1, 2011 Ok everyone, i swapped out the cluster, found a nice one out of a 99 lumina ls, 140k car, looked like a blown tranny. well the gas gauge still messesup the temp too but not as bad. where is the temp gauge sender unit located 3100 98 lumina? thanks. Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 so ok , took a 230 mile drive in her today, drove/worked/performed great but the damn coolant temp gauge Still goes gogogaga on me anyone got ideas how to fix this? i still need the location of the ct sender? is it the same one that is used for the efi? , i know where that one is and its a simple swap. please help!!! Quote Link to comment Share on other sites More sharing options...
AL Posted September 2, 2011 Report Share Posted September 2, 2011 Under the throttle body I believe mounted by the where the radiator hose connects Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 yes, i know of that sender. do these cars only use one sender unit ? thanks, i will be replaceing this sender soon, its only like 15.99 from orilys Quote Link to comment Share on other sites More sharing options...
AL Posted September 2, 2011 Report Share Posted September 2, 2011 Yep thats the only one... Are you sure its just the gauge or is your engine actually getting hotter and colder? If it is, replace your thermostat Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 no, its the gauge, engines dont go from normal to max 260 hot in 1 second and then back and forth that fast, i thought the same the first time it did this. i just went out and looked, if i can tie the throttle open far enough i can get a scoket or end wench on the sender and get it out. i wish id changed the sendor when i cleand the throttle body and egr stuff last winter... Quote Link to comment Share on other sites More sharing options...
AL Posted September 2, 2011 Report Share Posted September 2, 2011 Ive gotten it out without too much hassle before, I put a brick on my gas pedal I think Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 Ive gotten it out without too much hassle before, I put a brick on my gas pedal I think Brick? i never thought about that!!!! Quote Link to comment Share on other sites More sharing options...
AL Posted September 2, 2011 Report Share Posted September 2, 2011 And I think I used a swivel socket too... Its been about 3 years ago Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 Al thanks so kindly for the help tonight! Quote Link to comment Share on other sites More sharing options...
AL Posted September 2, 2011 Report Share Posted September 2, 2011 Not a problem! Hope that fixes it Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 Not a problem! Hope that fixes it ME TOO!!! Quote Link to comment Share on other sites More sharing options...
AL Posted September 2, 2011 Report Share Posted September 2, 2011 One more thing, If an air bubble hits that sensor, I wonder if it can make it do that to the gauge? Quote Link to comment Share on other sites More sharing options...
1979lee Posted September 2, 2011 Author Report Share Posted September 2, 2011 One more thing, If an air bubble hits that sensor, I wonder if it can make it do that to the gauge? thats totally possible. the last time i had the system open is when i did the tb and egr cleaning, i relplaced the little hoses the flow dexcool through the tb and i did the heater hoses to. i burped the siystem like your supposed to, but its possible there's an air bubble floating round in there someplace. but still 179k and the original cts? time to change it out, and for the price why not!!! thanks again al Quote Link to comment Share on other sites More sharing options...
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