V8 Triton needs help...
#1
V8 Triton needs help...
Hi guys I just bought a used 1997 F150 5.4 V8 (4x2). This truck is awesome no leaks brand new a/c and no leaks on the engine whatsoever. It also runs excellent so long as it's in drive however, when I shift to reverse the idle drops and sometimes dies out on me. Can anyone help me figure out why this happens. The truck is completely stock with the exception of a borla exhaust system. Thanks everyone!!!
#2
Hi guys I just bought a used 1997 F150 5.4 V8 (4x2). This truck is awesome no leaks brand new a/c and no leaks on the engine whatsoever. It also runs excellent so long as it's in drive however, when I shift to reverse the idle drops and sometimes dies out on me. Can anyone help me figure out why this happens. The truck is completely stock with the exception of a borla exhaust system. Thanks everyone!!!
any code present?
Seems like the IAC might need attention, remove and clean. A place to start anyway.
checking for vacuum leaks would be another, as well as, cleaning the MAF sensor.
If that doesn't do it, then a removal of the throttle body housing and giving it a good cleaning including the EGR ports.
#3
cleaned...
Do you have any Idea of prior maintenance history??
any code present?
Seems like the IAC might need attention, remove and clean. A place to start anyway.
checking for vacuum leaks would be another, as well as, cleaning the MAF sensor.
If that doesn't do it, then a removal of the throttle body housing and giving it a good cleaning including the EGR ports.
any code present?
Seems like the IAC might need attention, remove and clean. A place to start anyway.
checking for vacuum leaks would be another, as well as, cleaning the MAF sensor.
If that doesn't do it, then a removal of the throttle body housing and giving it a good cleaning including the EGR ports.
The only time it goes into reverse without stalling is right after I start it up cold and after starting it up again when it stalls coming out of drive...
Vehicle was maintained really well...
Thanks enriched!!!
#4
To clean an IAC, you need to use WD-40 or Deep Creep, not carb cleaner - and you need to work the plunger with a screwdriver till it's free and smooth.
If you soaked it in carb cleaner, buy a new one.
Have you scanned the OBD2 for codes?
Clean the throttle body off the engine with throttle body cleaner and clean the MAF with MAF cleaner.
If you soaked it in carb cleaner, buy a new one.
Have you scanned the OBD2 for codes?
Clean the throttle body off the engine with throttle body cleaner and clean the MAF with MAF cleaner.
#5
#6
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To clean an IAC, you need to use WD-40 or Deep Creep, not carb cleaner - and you need to work the plunger with a screwdriver till it's free and smooth.
If you soaked it in carb cleaner, buy a new one.
Have you scanned the OBD2 for codes?
Clean the throttle body off the engine with throttle body cleaner and clean the MAF with MAF cleaner.
If you soaked it in carb cleaner, buy a new one.
Have you scanned the OBD2 for codes?
Clean the throttle body off the engine with throttle body cleaner and clean the MAF with MAF cleaner.
BTW the only code showing is for an 02 sensor I'm guessing it's from the borla exhaust system...I'll check again tomorrow and google what the code is for exactly.
Depending on how I park but for the most part I reverse a little before driving off (I usually park out on the street). I think it doesn't die out because the idle is still a little high when the truck is getting warmed up. Once it's warmed up though the idle drops if I ever have to reverse and 8/10 times it dies out on me.
#7
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#10
#11
Possibly the PCV valve as well. Just a hunch, it's most likely both
You have an O2 code. How do you know ? What's the code ? Is it a secret ?
These trucks will treat you right. A little respect goes along way. By little I mean at least general maintenance or in this case common sense.
Yea, no neglect here...Don't bet the farm on that one
#12
???
I changed out the IAC valve and cleaned out the throttle body...drove around for a bit but it still stalls once in a while maybe 2/10 times now. I had it scanned and no codes are showing.
(I changed out the valve before I had it scanned. I did not disconnect the battery so it wouldn't erase any code if there was one).
The mechanic that scanned it said sometimes the vehicle needs to familiarize itself with the new part. Okay I guess I'll have to drive it more. Does anyone have any other suggestions?
(I changed out the valve before I had it scanned. I did not disconnect the battery so it wouldn't erase any code if there was one).
The mechanic that scanned it said sometimes the vehicle needs to familiarize itself with the new part. Okay I guess I'll have to drive it more. Does anyone have any other suggestions?