1990 xj long crank time and hard starting
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
OK...started the timer, went out popped the hood, undid the connector, got .3 AC V from the CPS cranking, (again), put all back and came in. Two minutes, eight seconds. Guess I should at least have a new one waiting "on deck".
I saw somewhere its a square wave. I wonder if the cheap-o meter reads that correctly.
I saw somewhere its a square wave. I wonder if the cheap-o meter reads that correctly.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
My wife's 88 starts like that. My 90 is a little longer. Both have upgraded battery and ground cables, too. If I felt like being Mr Science, I'd compare the CPS output voltage between the two.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
OK...started the timer, went out popped the hood, undid the connector, got .3 AC V from the CPS cranking, (again), put all back and came in. Two minutes, eight seconds. Guess I should at least have a new one waiting "on deck".
I saw somewhere its a square wave. I wonder if the cheap-o meter reads that correctly.
I saw somewhere its a square wave. I wonder if the cheap-o meter reads that correctly.
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
HaHa! My MAIN goal was to recheck that low reading with a second meter. At least this old Jeep seems to work OK with .3. I should try moving it closer. And, yea, these things seem to be as wiley is an old condenser! I'd check it if my radio wouldn't work!
Member
Joined: Jun 2012
Posts: 212
Likes: 1
From: Schaumburg IL
Year: 1990
Model: Cherokee
Engine: 4.0 I6
Its a renix thing,mine always takes a bit before starting.
Although priming the fuel system doesnt make it start any faster,it will randomly start first or second crank.
Although priming the fuel system doesnt make it start any faster,it will randomly start first or second crank.
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