Iam getting a tapping sound at 2000-2500rpm
Only when the O/D switch is off.
Then it stops when I get above 2500rpm. Opinion or explanation please
240k on a 80 series 1993.
Iam getting a tapping sound at 2000-2500rpm
Only when the O/D switch is off.
Then it stops when I get above 2500rpm. Opinion or explanation please
240k on a 80 series 1993.
Clean your EGR Temp Sensor and check your ignition timing. That the issue seems to be rpm (window) specific and only under a load makes me think you might be 'pinging' and not experiencing valve train 'tap' which should be present at any rpm.
Clean your EGR Temp Sensor and check your ignition timing. That the issue seems to be rpm (window) specific and only under a load makes me think you might be 'pinging' and not experiencing valve train 'tap' which should be present at any rpm.
I cleared the code and cleaned the sensor, it had heavy carbon build up. I dont no how to check the timing. I did spray contact cleaner inside the egr as well. No clogs inside vacuum lines either.
I cleared the code and cleaned the sensor, it had heavy carbon build up. I dont no how to check the timing. I did spray contact cleaner inside the egr as well. No clogs inside vacuum lines either.
It just requires an inexpensive Timing Light. Then mark your Crank Pulley and Degree Marks with a paint pen/silver permanent marker so you can see them. Then follow the instructions (FSM) for your engine. You can use the search function here. OR....take to any automotive shop and have them do it. Factory spec is 3° BTDC. IF yours is less than that....you'll have poor performance and perhaps hard starting, IF significantly more than that....it can cause pinging. Not saying that is your problem...but a good thing to eliminate.
