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error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches functioning, assemble, disassembly, complete refurbish, repair, installation every single thing is covered
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I had the same problem, and the solution was cleaning the throttle body, it does need to be completely removed to be cleaned thoroughly. I just used some brake cleaner on a rag to clean off all the carbon deposits. A friend of mine who is a dealer tech had only seen this trouble code once, and this was the solution. So far, my light has not come back on and the truck is running alot better at idle.
You need to have the system tested. It sounds like it is either low on refrigerant or there is a blockage in the system causing too much pressure and the system being disabled by the high pressure switch.
The engine in your car is designed to run smoothly with maximum power
output and produce as minimal emissions as possible. When your car's
engine is not performing properly it can cause, low gas mileage, low
power output, increased emissions and possible internal engine damage
if left untreated. This troubleshooting guide is designed to isolate
the malfunctioning cylinder and troubleshoot to repair the problem.
Before we start we need to know one of two things; is the engine running
poorly at idle only and seems to be ok under power? Or does the engine
run fine and it's just the engine idle condition that is the problem.
If your engine is idling rough please visit, engine misfires at idle If
your engine cranks over but won't start visit engine wont start. If
your engine won't crank over visit engine wont crank over. If your
engine is running rough all of the time or intermittently you are in
the right place. Below we have created a guide to aid diagnoses and
repair procedure for most common rough engine running problems.
Step 1: Anytime you have a problem with
electronically controlled components such as an engine, transmission,
ABS brake, or SRS (supplemental restraint system, air bag) inspect all
fuses in the under hood power distribution center and under dash fuse
panels using a test light. If all fuses test ok continue to the next
Step 2: To check for problems
with electronically controlled components such as an engine,
transmission, ABS brake, or SRS (supplemental restraint system) and the
fuses test ok a trouble code scan is needed to identify any system
trouble. Use a simple scanner tool to retrieve trouble codes and check
if they relate to the specific problem, like an ignition coil failure
code. If a trouble code is present but does not pertain to the immediate
problem like an EVAP code ignore it until a later time, after the
engine is running properly. The reason we repair non-related codes
after the engine is running properly is because sometime false codes
can be triggered by a rough running engine. Once the engine is running
properly the code present might cycle and turn itself off. You might
say "if the engine isn't running right shouldn't it have a check engine
light and a trouble code?" Sometimes conditions occur that will not be
detected by the computer, example: if the intake or exhaust valve
operation fails the computer cannot detect the failure because the
problem is not sensor related, so the engine doesn't run smooth and the
computer thinks everything is ok with no codes. If the trouble code
retrieved relates to a cylinder misfire like an injector driver or
ignition coil failure first repair these problems then re-test system.
If no trouble codes are present proceed to the next step.
My guess is it's a timing chain problem, especially if it has a lot of miles (140K +) That model engine is notorious for bad timing chains.
I have the same engine and basically have had the same problem. Have a friend with one ('07) - same problem.
It's a pretty expensive problem to repair. Labor (by the Flat-Rate manual) is in the 14hr range plus parts. Used engines with low mileage (60K) are rare and around $2K when you find one.
Seems like the fuel line looses its fuel or something. ????? That would cause a no start or hard start problem . Your best bet , have it diagnosed by a repair shop . That is unless you want 20 different answers on here . Are you willing to replace parts your vehicle doesn't need . Testing is the only way find the problem , not guessing , that's all you'll get on here . Hooking up a professional type scan tool an checking sensor data parameters to see what is a miss . Doing fuel pressure testing ,hooking up a pressure gauge .