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The only way I think water got in the engine compartment was through these holes in the wheel wells where the upper control arms come through. The thing with the cam sensor is that its way up in the top of the engine block on the front (duh lol). I took the connector off of the cam sensor and everything was free of corrosion and the gasket was in good shape. If the o2 sensor got sprayed (which is very likely considering where I was washing) would that cause the cam sensor to read things incorrectly? Given the location of the cam sensor I find it hard to believe I could have sprayed it enough to screw it up. Given the circumstances the o2 sensor seems like the most likely to have gotten sprayed in a bad way. Which is why I don’t understand why I’m getting a cam sensor code.
And if anyone could point me in the direction of a video that shows how to test the connection from the 02 sensor to rule out a bad connection that would be great. I know the sensors themselves aren’t cheap.
I’m getting closer and closer to just taking it to a shop :sick:
It’s just all so confusing and it’s keeping me up at night!
*UPDATE*
Today the misfire code is gone. I just had it hooked up and it came back with the camshaft sensor and the O2 sensor. Now, I’m leaning even closer to the camshaft sensor acting up. Could the cam sensor not reading right throw everything off and cause the o2 sensor to throw a code? Or, are both of them, for whatever reason, crapped out?
[quote=”IRONMAN0992″ post=31784]
I would agree that the gasket may not have sealed right if it was reused and I can see how moderate misfire may not effect engine power (the computer will try to compensate for any mix up in the air/fuel ratio)
For the heck of it try the carb spray around it and listen for idle changes.
this gasket for me would be my prime suspect as this point.[/quote]Well I sprayed TB cleaner all over that bastard when I got home from work tonight and got nothing. Just sat there at idle, no noticeable change. :huh:
I mean, we put the manifold back on and I started the truck up just like I always do. It took a few cranks before it finally fired up (which like I said before has been the norm). The big change seems to come from when I washed my truck. I had to shut off and turn my truck back on twice before I got the car wash and it was doing it’s normal thing. It was after the car wash that all this seemed to start. Ever since then the amount of cranks it takes to start up has about doubled. It still starts much quicker in the morning when it’s cold and has been sitting, but even today it seemed to burble a bit, usually when it’s cold like that is the only time I feel it starts like it’s supposed to, after one or two cranks.
I mean I might as well replace that gasket just for peace of mind, and since I should have already anyways. Then I’ll take the time to check out the plug in cylinder 1.
I can’t say I’ve checked for fuel pressure. I don’t actually know how to be honest. But how does that explain how easily it starts in the morning after sitting overnight?
So is there a general consensus I should yank that intake manifold off and put a new gasket on there? Again its confusing to me because if the gasket was bad or not properly seated I feel like there would be more of a dramatic effect on the driveability.
I picked up a Chilton manual today. I haven’t found anything about resistances for certain sensors, Mayne I just haven’t found it yet.
But, after reading the replies and reading the section in the manual about how to remove the intake manifold I have to admit I didn’t use a new manifold gasket when we put it back on. The old one looked fine. Could this be the cause of the misfire code? One of the probable causes read, “large vacuum leak specific to cylinder”. Could the old gasket not be seated properly? The only reason this confuses me is that I’m still not experiancing any of the symptoms of a misfire. I still have just as much power as I had before. Could the misfire have been a onetime thing, that then tripped the oxygen sensor code?
Or maybe its a combination of poorly seated gasket, bad o2 sensor and a bad cam sensor?! Ugh, I am so very confused. But all the comments have been very helpful, please keep it coming!
By the way the battery checked out fine.
My wallet isn’t deep enough to throw parts at anything. I had my battery checked a few weeks ago and it was fine. It’s not turning over slow, it’s just taking longer to finally start up. I could stop by les shwab on my way to work and have them check it out just to be sure.
Given the codes I was given and considering I have no loss of power or performance wouldn’t it be safe to assume its one of those two sensors (oxygen and cam)? It has always fired right up when its cold and taken longer to start once its warmed up. But since yesterday its seems to have gotten much worse.
And you can’t use a multimeter to check and see if these sensors are operating correctly?