Thanks for any advice in advance!! This has always been a great newsgroup. Whoops my nose got brown..... Thanks JRE
- posted
19 years ago
Thanks for any advice in advance!! This has always been a great newsgroup. Whoops my nose got brown..... Thanks JRE
if the rotor turns, the timing chain hasn't broken. the power flow from the crank to the distributor is as follows: crank to camshaft to distributor to oil pump. I wouldn't assume that you've got spark unless you've observed it.
--Bret
Fastest reply I have ever seen. You dudes are great. OOPS more brown on my nose!! I will ck for rotation in the A.M. If the distributor rotates I will look into Spark. Thanks Again JRE
Distributor runs off the camshaft so yes, if it's rotating, you have a functioning chain.
sounds like a classic bad fuel pump
the bang was a backfire from lean mixture
The mileage is probably about prime for the fuel pump as well.
Brian
Fuel pump was replaced last year with a gm pump, but I will keep that in mind.
It wouldn't hurt to check and see that the timing chain didn't jump time also.
Brian
Check the hei module inside the distributer. My truck did the same thing last week.
Unfortunately, there is no way to test exept for replacing it. Anyone else know how to test the hei module?
CKed this A.M and injectors are firing, Rotor is turning, but will not fire off. I disconnected the timing connector and still would not fire off. I will go back up this afternoon and ck for spark with my spark tester. Assuming I have spark how would I ck to see if the timing chain jumped a tooth?? Thanks Again,and again, and again. JRE
The two easiest ways to do this is #1 remove the spark plugs so the motor turns easier, take the valve cover off the drivers side and turn the motor until the intake valve closes. Then take a stiff wire or a thin long screw drive and place it in the #1 spark plug hole while SLOWLY turning the motor by hand until the piston is at top of the stroke. The rotor button should then be pointing right at the #1 cylinder terminal on the distributor cap.
#2 method is bump the motor over with the starter and holding a finger over the #1 spark plug hole until you feel compression. Then SLOWLY turning the motor by hand use the wire or screw driver to feel your way to the top of the piston travel. Again the rotor should be pointing at the #1 spark plug terminal on the cap.
Brian
Thanks for all the input. I guess the "loud bang" threw me a little. Anyway I cked for spark and there was none, rang out the coil and pickup both were good so I replaced the Ignition Module. All Fixed Thanks Again JRE
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