Crankme69
New Member
My neighbors truck is acting like it needs an IP.
A few things about the truck, no EGR valve OEM pump with 103K on the motor & pump.
The truck started surging hunting pretty bad 2 weeks ago, can not hold a steady RPM with it over 1200 or so.
His truck is OBD2 so my GMDT scan tool is useless.
No SES light, it starts fine, but hunts cold & gets slightly better after it warms up.
I checked what I have learned over the past years here on the forum.
Found his LP was bad, don't know for how long, so we replaced that. No love
Today I did a few other things, it's looking like the IP is bad to me but thought maybe someone here would have a suggestion?
So here is what has been done so far, still can not hold steady RPM's with it.
New so far & it needed all these things anyways:
Fuel, Air filter & LP. Checked supply press 5 lbs at idle 3 under load. Checked for air in the fuel & removed tank cap, no love.
Turbo & wastgate checks fine
Pulled the plug on the coolent sensor located next the T stat housing nutta no change
Pulled off the filter harness from the Optic sensor no change
Hooked up my PMD no luck again
Getting him prepared to go see the local stanadyne dealer next unless I missed something else to check...?
We might be able to gain access to a scan tool, so that is also on our agenda...
Anyone got any other suggestions???
TIA,
Greg
A few things about the truck, no EGR valve OEM pump with 103K on the motor & pump.
The truck started surging hunting pretty bad 2 weeks ago, can not hold a steady RPM with it over 1200 or so.
His truck is OBD2 so my GMDT scan tool is useless.
No SES light, it starts fine, but hunts cold & gets slightly better after it warms up.
I checked what I have learned over the past years here on the forum.
Found his LP was bad, don't know for how long, so we replaced that. No love
Today I did a few other things, it's looking like the IP is bad to me but thought maybe someone here would have a suggestion?
So here is what has been done so far, still can not hold steady RPM's with it.
New so far & it needed all these things anyways:
Fuel, Air filter & LP. Checked supply press 5 lbs at idle 3 under load. Checked for air in the fuel & removed tank cap, no love.
Turbo & wastgate checks fine
Pulled the plug on the coolent sensor located next the T stat housing nutta no change
Pulled off the filter harness from the Optic sensor no change
Hooked up my PMD no luck again
Getting him prepared to go see the local stanadyne dealer next unless I missed something else to check...?
We might be able to gain access to a scan tool, so that is also on our agenda...
Anyone got any other suggestions???
TIA,
Greg
