87 xj won't start

X

x2see

NAXJA Forum User

Location

independence mo

• Aug 14, 2004

• #1

I have a 87 xj that won't start I dont thank it is getting any spark so I got a new coil but still no good got gas what else could it be? please help.

 

M

MACH90XJ

NAXJA Forum User

Location

Oregon

• Aug 14, 2004

• #2

CPS is common for no start.Some have just un plugged and re plugged,which means connector is not contacting properly.

Engine type is helpful,EFI or carb ?

 

X

x2see

NAXJA Forum User

Location

independence mo

• Aug 14, 2004

• #3

efi I guess it has fuel rails. were is the cps at?

 

M

MACH90XJ

NAXJA Forum User

Location

Oregon

• Aug 14, 2004

• #4

Ill assume 4.0 motor w/auto ?CPS is located on top drivers side of tranny with the connector coming up to rear of valve cover.I beleive 87 setup is the same as my 90.Type in a search CPS sensor,should be dozens of links.

Hope that helps,gotta go, be back late tonight.

 

X

x2see

NAXJA Forum User

Location

independence mo

• Aug 14, 2004

• #5

yes 4.0 5 speed

 

logdog

NAXJA Member #703

Location

Riverton, UT

• Aug 14, 2004

• #6

Take off your dist cap and watch it while someone cranks it. If it's not moving, the gear at the bottom of the distriutor is broken. (more common than you think) If it is moving, probly a bad cps.

 

X

x2see

NAXJA Forum User

Location

independence mo

• Aug 15, 2004

• #7

OK here is the weird thing it work's some time. I was trying to find out what the problem is and for some resend it worked then it stop then it worked again is there something else I'm missing that could cause this? I'm talking about the coil sometimes it will fire and some times not it does the same with the new coil and the old.

 

J

jneary

NAXJA Forum User

Location

springfield, virginia

• Aug 15, 2004

• #8

replace the crank sensor

 

X

x2see

NAXJA Forum User

Location

independence mo

• Aug 16, 2004

• #9

thank you thank you it was just a bad connection on the cps unplugged it and blew it out the it started right up thanks. now another ? for you my temp Gage doesn't work. when you start up it goes all the way over then when it starts it goes back down and the heater works good so I know the temp is good, could this be a bad sending unit?

 

D

Digger87xj

NAXJA Forum User

Location

Buffalo Creek/Lakewood CO

• Aug 16, 2004

• #10

the temp sensor is in the back of the head near the CPS connector... you probably knocked if off reaching around back there