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Igot a07 pete with c-15 cat engine trying to replace the waterpump having problem getting it out

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Oh boy.. first you need to remove the huge fan in front after taking the belts off.. the entire fan mount has to be taken off.. you may also need to remove the big bottom pulley off ..drain the cooling system into a huge bucket.. about a 6-8 gallon one. then take any hoses loose.. then unbolt the pump and remove it..if in doubt contact a cat dealer or peterbuilt work on diesels is limited but I could figure it out if I saw it..

Posted on Dec 26, 2013


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Posted on Jan 02, 2017


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I have a pete with a 3406e cat. if the jakes or out of adjustment can it drop oil pressure

highly unlikely, the jakes are just valves in the cylinders that open to let the compression escape the piston cylinder so the engine stops producing power and can slow down your engine much quicker than normal. They have nothing to do with your oil system. If you have low oil pressure my first guess would be to look at and test your oil pump.

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Engine light on code reads bad cat replaced it light returns reads ox senors replaced it light returns reads cat gone bad.

the ECU (brain) has no idea at ALL what is broken!
it only knows 2 things, bad inputs. and failed tests.
nothing else. The brain is not AI (artificial intelligence)
Not even and expert system , yet.
that is the job of and ASE mechanic
to find the cause. and not GUE$$.

your failure to state the DTCs reported , sorry, is bad news to anyhelper, sorry!
420s. is , weak CAT test. but in most case it's not the CAT.
senors replaced? 1 or both.? B1S1 and B1S2?

Did you get o2 (oxy) DTC failures?, if yes, ignore all cat fails.!
if other codes/ DTC, that too, means ignore cat failure.
the CAT monitor (P042x) only is valid if the engine runs prefectly.
if not the CAT overheats or underheats( goes dead cold)\

the cat will over heat, (cel flash madly) for gross engine over fueling (1 example , bad fuel reg, and pressure at 60PSI)
the cat glows red hot , or near. and the test may fail.
case 2: the engine (AFR fuel) is grossly lean the CAT may go under temperature and drop off line.
we call this CAT no lit off, it has a minium working temperature.
as air leaks in front of the cat causes EFI to go very rich.
and leaks behind can make the rear 02 go nuts. and lie
and say, bad Cat.
all this is the domain of the ASE mech. he knows all stuff.
and never ever lets the ECU tell him what to do.;
it does tell him (suggests) a battery of test.
hope that helps,
post all stored, DTC,all pending and the full freeze frame data
and if cagey? the closed loop status hot idle.

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Igot a vauxhall astra 1.8 sri igot a light cum on the dash its a car with a spanner threw it when on the engine idles bad

This is your mechanical fault light and the lack of power is the car going into limp mode to protect the engine and its components.
Have a garage run a diagnostic check to find the fault code and the fault.
Hope this helps

Apr 18, 2012 | Vauxhall Astra Cars & Trucks

1 Answer

Igot a vauxhall astra 1.8 sri igot a light *** on the dash its a car with a spanner threw it when on the engine idles bad

there so many reason
1 may be co2 sensor
2 air mass sensor
3 coil pack
4 throttle body sticky

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96 Chevy Impala SS. Runs For 15 Mins, An Dies Out. Sits For 5, An Cranks Back Up. Then It Repeats Itself Again. I Believe It's The Cats. But IAm Not Sure. The Check Engine Light Used To Come On, A

Get it scanned again. If you bought cheaper ones at the parts store instead of oem ones from the dealer you are probably going to be doing them again. The upstream and down stream 02 sensors communicate with each other so it could be the upstream sensors even though it says downstream. I ran into this problem myself.

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Just did an engine was on my 2000 ford expedition and now i have no power barely get 5 to 10 mph what could this be after the engine wash i changed spark plugs and no change my cat is also bright red when...

All your cats are ruined
All your O2 Sensors are ruined

Now you need to find out why the cat failed, in less than 15 years
BEFORE you replace them all.

What does-just did an engine mean?

For the converter to be red hot, the
timing chains are out of wack or
your putting a lot of raw fuel into them

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Mazda Miata: Replaced the coil pack because of misfires, that fixed misfires. Now the check Engine light comes on and the code was related to Cat Convertor. The car get hot around the console and gear...

The cat converter was trying to burn all of the excess fuel that was being sent out of the exhaust due to the misfire, got way to hot and melted the inside of the cat. I experimented with this while in tech school. You can burn up a cat in about 15 minutes at around 3000 rpm with a single cylinder misfire. I also work at a shop that specializes in miatas, and have seen this before. Get a new catalytic converter.

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