Timing Problems, 87 Ranger
Thread Starter
|
New User
Joined: Oct 2000
Posts: 1
Likes: 0
Timing Problems, 87 Ranger
I have an 87 Ranger XLT, 4x4, Extended Cab, 2.9L EFI, V-6, Manual Transmission, TFI-IV Ignition System. The symptoms started as: The engine was running pretty smoothly, then started running rough, and then just stalled out completely. After many attempts to start the engine, the battery was shot, so the battery was replaced (old anyway). Engine spun over faster than normal, making me believe the timing was off. After checking the timing it appeared to have "jumped" time. I could turn the distributor from original setting as far as it would go in one direction and the engine would start and run, but running rough. Decided to replace timing chain set. Truck has 150,000+ miles, but has been reliable, until now.
I am still having the same problem. The timing marks on the gears were lined up (tore down again to verify this). I put the piston to TDC, timing mark on crankshaft pulley being lined up with the timing mark, rotor on distributor lined up with #1 post on distributor cap. Still have same problem. Distributor needs to be turned 90 degrees in order to make the engine start. Tried pulling distributor and turning rotor one or two teeth in either direction, but can only turn rotor 90 degrees, not one tooth at a time. Won't line up. Timing appears to be off 1 or 2 teeth, engine runs rough. When I do get it to run, and turn it off, it won't start again unless I turn the distributor again. Any ideas?? Could it be electronic? Sensors? Is there anything else besides the timing chain/gears that could be causing the timing to change? Could it be the TFI-IV ignition module or something in the computer? Any and all help would be greatly appreciated.
Thanks,
David
I am still having the same problem. The timing marks on the gears were lined up (tore down again to verify this). I put the piston to TDC, timing mark on crankshaft pulley being lined up with the timing mark, rotor on distributor lined up with #1 post on distributor cap. Still have same problem. Distributor needs to be turned 90 degrees in order to make the engine start. Tried pulling distributor and turning rotor one or two teeth in either direction, but can only turn rotor 90 degrees, not one tooth at a time. Won't line up. Timing appears to be off 1 or 2 teeth, engine runs rough. When I do get it to run, and turn it off, it won't start again unless I turn the distributor again. Any ideas?? Could it be electronic? Sensors? Is there anything else besides the timing chain/gears that could be causing the timing to change? Could it be the TFI-IV ignition module or something in the computer? Any and all help would be greatly appreciated.
Thanks,
David
New User
Joined: Oct 2000
Posts: 2
Likes: 0
Timing Problems, 87 Ranger
first of all you have to remove the spout connector to be able to set the timing. It's hard to find and see, but it is there on the passenger side of the lower intake manifold. It will be a harness that just seems toend with a connector on the end with tape around it. It should be part of the injector harness. It is imperitive that this be removed before the timing is set. Let me know how you make out. Good luck
Thread
Thread Starter
Forum
Replies
Last Post
BroncoBuddy
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
6
Feb 3, 2024 10:01 PM
Gordon Freeman
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
12
Jun 30, 2011 05:57 AM
model t
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
5
Jan 4, 2002 09:24 PM
