UNL1MTD Posted May 15, 2007 Share Posted May 15, 2007 My Renix MPI system is making a rapid ticking noise. The noise sounds like metal on metal. It is present at start up and is present after running it for awhile (25 minutes). I did a bit of searching and the only lead I had was that it was an exhaust leak and not the Injection system at all. (searched 'engine ticking') My method of determining the source was taking a screw driver and putting it on different components while running and putting my ear to it, redneck stethoscope. The loudest ticking was about 1/2" on the fuel rail behind the Fuel Pressure Regulator. Is this a sign that it could be bad? Is there any common ticking associated with Renix MPI systems? My rig is still backfiring when the engine is cold, not sure if that helps clue anybody into my problem. But it is very little backfiring in comparision to when I first got it and it is no where near as predictable. Thanks, Sean Link to comment Share on other sites More sharing options...
fendermb4 Posted May 16, 2007 Share Posted May 16, 2007 My SRT has ticked like that since it was new. I've always taken it to be the 52lb injectors firing. Link to comment Share on other sites More sharing options...
pingpong Posted May 16, 2007 Share Posted May 16, 2007 Its the injectors firing.. normal.... at least on my junk :brows: Link to comment Share on other sites More sharing options...
91mj97tj Posted May 16, 2007 Share Posted May 16, 2007 I would say check your spark plug wires. But that is what stopped the ticking on my motor. Link to comment Share on other sites More sharing options...
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