Most likely your sending unit, if you are going to do it i would suggest upgrading the fuel pump as there is no sense dropping the fuel tank twice. The sending unit for water temp is on the lower intake manifold and is bad, mine did the same thing. Use rtv black on the threads and make sure you ask for the unit for a guage. John
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89 Notch: ASP Pullies,
K&N Air,Transgo shiftkit,Trans. cooler,FMS 3 core , FMS 4:10's, 1.5" cowl, cold air kit, hooker shorties(jet hot coated), O/R H-Pipe, ASP solid mounts, Energy Sus. Trans. Mnt. BBK 70mm TB, MSD 6al, Dual elec. fans, 5.0 Firepower Kit, Scorpion 1.6 RR's, Flowmasters, 73 mm MAF, cobra intake and crower #512 cam,
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