I recently purchased a 2000 GMC Sierra 1500 Extended Cab 4x4 with 136,000 miles and an automatic transmission. It has the 4.8 liter engine. There are no noises or leaks, but the truck will not start the first time I turn the key. It just cranks and cranks but doesn't start. However, the engine fires right up as soon as I turn the key a second time. The timing seems to make no difference. Even if I just tap the key to the start position the first time, then let off and try again, it will start right up. The previous owner's mechanic could not figure this problem out. He replaced the fuel pressure regulator with no luck. The truck does have a Cool Start remote starter with a parallel wiring module. The previous owner claims that the truck started acting this way before he had the starter installed. Also, sometimes when using the turn signal, the radio shuts off. It comes back on as soon as the turn signal lever releases back to the off position. I do not know if these problems have any connection or not, the starting problem always exists, and the radio problem is quite intermittent. Any suggestions would be greatly appreciated.
Monday, June 25th, 2007 AT 8:24 PM