starting problems and correct voltage to fuel pump
It has been taking a seemingly long time for 1991 RRC to start and yesterday it got worse to the point that it took me an hour of trying before it would fire and run.
I looked at the threads on this subject (pre-4.0 litre) and the closest problem to mine never showed a resolution:
The relay clicks when I turn the key off and on
The fuel pump works when I supplied 12v
The voltage to the fuel pump was only 5.35v - is that correct.
The pump would pump sometimes when I turned the switch to "on" (I tested with an undone fuel line and listening for the motor) and sometimes not
I'm not sure how to test the fuel temp sensor - ohms?
The ignition switch acted strange. Sometimes after cranking for a long time, when I turned it off and then on, no lights showed and when I then tried to crank it nothing happened. This appears to be a ignition switch issue - yes?
I did notice many cracked rubber boots on various engine electrical connections (injectors, fuel thermistor) and wonder what to do about them. Electrical tape always unravels and I can't fir shrink tape over the connector.
One more thing:
Recently the engine began to rev way up 1,500+ RPM at start - cold or hot - and then slowly stepped down to a normal idle.
2011 RR HSE -
1970 LR Series 2A Bugeye BenzOver
2001 GMC 2500 4wd