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Ok.
Extended cranking time, when the glow system is working, and from your description it is, is from air in the fuel more often than not.
10seconds light on, no blinking, and a full 30 plus seconds of relay clunk... if the cabin light is dimming the glows are at least pulling amps. Starting in 14F weather pretty much confirms they are working at least SOME of the time.
The 87 glow relay DOES have a fuse. Unless someone has changed the relay for a 91 or so, it will have a strip fuse that can sporadically work.
Notice if parking on a downhill slope forward or backwards makes a difference.
Forward hard starting focus on glow system.
Rearward hard starting, focus on fuel system. The 87 is notorious for delivery valve seals leaking air...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!
My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!
1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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