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Search: Posts Made By: R&TBabich
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06-01-2018, 02:21 AM
Replies: 25
Views: 729
Posted By R&TBabich

The best way to tell if you have proper fuel...

The best way to tell if you have proper fuel pressure is to use a pressure gauge connected to the fuel test port or schrader valve on the fuel rail.
Harbor Freight has an adequate fuel pressure...
Forum: 5.4L
05-25-2018, 01:05 PM
Replies: 1
Views: 215
Posted By R&TBabich

[/left]If it was only bogging down it might be...

[/left]If it was only bogging down it might be the fuel pump or fuel filter.
Since it revs up high I would check the vacuum hoses, particularly the PCV hose near where it connects to the throttle...
02-26-2018, 02:03 AM
Replies: 11
Views: 564
Posted By R&TBabich

The keys contain a key code which is used to...

The keys contain a key code which is used to verify an authorized key is being used to start the engine.
OEM keys contain a key code which can't be changed.
New key blanks are available that have...
01-21-2018, 08:18 PM
Replies: 10
Views: 513
Posted By R&TBabich

You may not have had a bad coil. The boots...

You may not have had a bad coil.
The boots deteriorate long before the coils go bad.
I change plugs and boots at 50k.
Denso 671-0001 boots have worked well for me.
Changing plugs at 50k reduces...
01-21-2018, 06:22 PM
Replies: 10
Views: 513
Posted By R&TBabich

Years is not so important for ceramic and steel. ...

Years is not so important for ceramic and steel.
How many miles on those plugs?
Plastic and rubber parts do have issues with age.
I have 2 Explorers '92 & '93, both with 110-115k.
Interesting...
01-15-2018, 01:47 AM
Replies: 22
Views: 858
Posted By R&TBabich

It may not be the entire COP. The boot may be...

It may not be the entire COP.
The boot may be degraded.
The coils last a lot longer that the boots.
I've had good service with Denso 671-0001 boots.
How many miles on the COPs?
12-28-2017, 01:45 PM
Replies: 20
Views: 2,131
Posted By R&TBabich

Yes, an exhaust leak can throw one of these...

Yes, an exhaust leak can throw one of these codes, but probably only one.
Our 2002 5.4L Exped dual cat would throw only a P0171 a couple of min after startup from cold.
I have a broken exhaust stud...
12-22-2017, 04:53 PM
Replies: 24
Views: 1,587
Posted By R&TBabich

The fuel pump will be turned on for a couple of...

The fuel pump will be turned on for a couple of seconds after Run is selected to pressurize the fuel rails.
It will not be turned on again until the PCM "sees" the engine turning with the crankshaft...
12-18-2017, 10:15 PM
Replies: 5
Views: 468
Posted By R&TBabich

First thing I would do is hook up a fuel pressure...

First thing I would do is hook up a fuel pressure gauge and find out what it's doing.
An intermittent fuel pump motor can cause your symptoms or other things.
Some testing will help narrow things...
Forum: 5.4L
12-17-2017, 09:21 PM
Replies: 2
Views: 295
Posted By R&TBabich

I would first check what's happening with the...

I would first check what's happening with the fuel pressure during all this.
Harbor Freight has an adequate fuel pressure gauge, #62623, for $20.
This would narrow down the troubleshooting a bit....
12-14-2017, 01:57 PM
Replies: 24
Views: 1,587
Posted By R&TBabich

There is nothing "wrong" with connecting a...

There is nothing "wrong" with connecting a battery charger without disconnecting the battery.
Once an engine is running the alternator is a battery charger.
If one of my vehicles is not going to...
12-04-2017, 03:13 PM
Replies: 4
Views: 305
Posted By R&TBabich

It's probably the fuel pump, but I would check...

It's probably the fuel pump, but I would check the fuel pressure at the test port of the fuel injector rail.
Harbor Freight has an adequate fuel pressure tester, #62623, for $20 (less with coupon)....
11-03-2017, 11:36 AM
Replies: 61
Views: 3,247
Posted By R&TBabich

You might check out the heater cutoff valve if...

You might check out the heater cutoff valve if you have one.
The valve is vacuum activated when A/C is selected, but even though the arm moves the valve may be stuck/clogged.
There is sometimes a...
10-27-2017, 06:28 PM
Replies: 2
Views: 208
Posted By R&TBabich

Can you change the heat control from defrost to...

Can you change the heat control from defrost to vents?
All vehicles have the fail mode where the heat will go to defrost the windshield.
If you have a vacuum controlled vent door and the vent door...
10-23-2017, 02:50 PM
Replies: 39
Views: 2,225
Posted By R&TBabich

When were the plugs last changed? If you are...

When were the plugs last changed?
If you are feeling misfires then there is Mode 6 data that can be accessed.
There are probably not enough consistent misfires to set a code, yet.
You will need a...
10-22-2017, 07:01 PM
Replies: 2
Views: 185
Posted By R&TBabich

Just to clarify, the fuel pump will only run for...

Just to clarify, the fuel pump will only run for a couple of seconds when the ignition switch is turned to Run to prime the fuel rails, then is turned off.
The pump will be turned on again when...
10-20-2017, 02:30 AM
Replies: 20
Views: 2,131
Posted By R&TBabich

A leak in the exhaust can cause a P0171 or P0174...

A leak in the exhaust can cause a P0171 or P0174 code.
Do you have any broken exhaust manifold studs?
Tighten the exhaust pipe to manifold nuts.
I had a P0171 that would get set and found the...
Forum: 5.4L
10-16-2017, 05:11 PM
Replies: 6
Views: 3,595
Posted By R&TBabich

The 5 sec in 3rd is using manual throttle. On a...

The 5 sec in 3rd is using manual throttle.
On a moderately steep grade where it needs to go into 2nd the cruise control will downshift into 3rd for a bit and disengage before going into 2nd.
If the...
Forum: 5.4L
10-15-2017, 02:00 AM
Replies: 6
Views: 3,595
Posted By R&TBabich

We just got back from a trip towing a 7k TH with...

We just got back from a trip towing a 7k TH with our Excur.
When cruising at 65mph with the Overdrive lockout off in 4th gear, turning it on will drop the trans into 3rd, all seems normal.
When we...
10-14-2017, 12:19 AM
Replies: 9
Views: 657
Posted By R&TBabich

Is your engine the 4.6L or 5.4L? What are the...

Is your engine the 4.6L or 5.4L?
What are the codes you are getting?
A coolant leak spraying on the engine can cause a series of cylinder misfirings. You would need to pull the COPs off the...
09-28-2017, 08:54 PM
Replies: 7
Views: 312
Posted By R&TBabich

That is "high charge" voltage for a drained...

That is "high charge" voltage for a drained battery.
All my vehicles run 13.2-13.7v with the engine running.
09-22-2017, 09:44 PM
Replies: 14
Views: 28,053
Posted By R&TBabich

It is a clear indication the fuel pump is not...

It is a clear indication the fuel pump is not working properly.
The fuel filter may be clogged.
The fuel pump pickup may be clogged.
The fuel pump relay may have bad contacts.
The...
09-19-2017, 12:15 PM
Replies: 21
Views: 1,426
Posted By R&TBabich

What brand parts did you use - happy with them?

What brand parts did you use - happy with them?
09-19-2017, 12:11 PM
Replies: 21
Views: 1,426
Posted By R&TBabich

I have a van that makes a ticking sound that goes...

I have a van that makes a ticking sound that goes away after heating up.
Does yours have any broken exhaust manifold studs/missing nuts?
I don't think there's a manifold gasket in there.
A...
09-19-2017, 10:53 AM
Replies: 21
Views: 1,426
Posted By R&TBabich

Sounds like the ticking on mine which has been...

Sounds like the ticking on mine which has been there since around 100k and hasn't gotten any worse in 65k more. The ticking completely goes away after about a minute once the oil pressure has come...
Showing results 1 to 25 of 128
 


 
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