jarek_rugby Posted March 21, 2019 Share Posted March 21, 2019 Hi there Today 2 times my engine stops. It was on the parking area. I drive in, put rear gear and engine stops. I started engine again, put rear gear and and after few meters engine stops again. Any ideas what it is? Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 21, 2019 Share Posted March 21, 2019 Jarek - You may have the idle set too low, which can cause it to die. If you don't know, there's an idle speed screw on the right of the carburetor and down close to the intake and you can turn it clockwise slightly to raise the idle speed. Otherwise, I can't think of any reason that it would die just in reverse. Link to comment Share on other sites More sharing options...
jarek_rugby Posted March 21, 2019 Author Share Posted March 21, 2019 Jarek - You may have the idle set too low, which can cause it to die. If you don't know, there's an idle speed screw on the right of the carburetor and down close to the intake and you can turn it clockwise slightly to raise the idle speed. Otherwise, I can't think of any reason that it would die just in reverse. Gary, i have EFI engine . Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 21, 2019 Share Posted March 21, 2019 Gary, i have EFI engine . Oops! My bad. Then I'm at a loss. Does your idle speed seem low? Does the truck die when you first put it in reverse or when you touch the throttle? Link to comment Share on other sites More sharing options...
jarek_rugby Posted March 21, 2019 Author Share Posted March 21, 2019 Oops! My bad. Then I'm at a loss. Does your idle speed seem low? Does the truck die when you first put it in reverse or when you touch the throttle? it was when i touch the throttle Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 21, 2019 Share Posted March 21, 2019 it was when i touch the throttle Then it probably has nothing to do with Reverse. Instead the throttle position sensor may have a glitch in it. You can test the TPS to see if it gives the values shown here: http://www.garysgaragemahal.com/diagnostics.html And the idle speed adjustment is supposed to be here, but I'm on a hospital's wifi and it is S L O O O O W and doesn't fill in, so I'm not sure it is there: http://www.garysgaragemahal.com/efi-idle-speed-adjustment.html Link to comment Share on other sites More sharing options...
jarek_rugby Posted March 23, 2019 Author Share Posted March 23, 2019 Then it probably has nothing to do with Reverse. Instead the throttle position sensor may have a glitch in it. You can test the TPS to see if it gives the values shown here: http://www.garysgaragemahal.com/diagnostics.html And the idle speed adjustment is supposed to be here, but I'm on a hospital's wifi and it is S L O O O O W and doesn't fill in, so I'm not sure it is there: http://www.garysgaragemahal.com/efi-idle-speed-adjustment.html How could i do this without tachometer ? (idle speed) Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 23, 2019 Share Posted March 23, 2019 How could i do this without tachometer ? (idle speed) By ear. Get it where you like it and where it doesn't stall when going in gear, nor makes serious clunks. But, if it is the throttle position sensor changing the idle speed won't help. Link to comment Share on other sites More sharing options...
Steve83 Posted March 23, 2019 Share Posted March 23, 2019 How could i do this without tachometer ? (idle speed) Any inexpensive aftermarket tachometer can be temporarily wired in under the hood just for diagnosis. It only takes 3 or 4 wires, and 2 of them (power & signal) connect to the truck's coil wires; the 3rd (ground) can be connected to the coil mount. If the tach has a 4th (to select the number of cylinders), it usually just splices into the ground wire. Link to comment Share on other sites More sharing options...
jarek_rugby Posted March 24, 2019 Author Share Posted March 24, 2019 Any inexpensive aftermarket tachometer can be temporarily wired in under the hood just for diagnosis. It only takes 3 or 4 wires, and 2 of them (power & signal) connect to the truck's coil wires; the 3rd (ground) can be connected to the coil mount. If the tach has a 4th (to select the number of cylinders), it usually just splices into the ground wire. Next question. How could i test - diagnose TPS? Link to comment Share on other sites More sharing options...
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