Hello again!
So, I´ve come across some new issues with the van (1997 Savana, Vortec 5.7) and I thought that maybe you guys could help me out. Again, I apologize if for any misspelling or incorrect choice of words as English isn´t my first language. Anyway, I would appreciate any help or suggestions.
On our way home from our family vacation, I noticed that the van started to run a bit hotter than it previously had done. This was a warm day (at least for being in Sweden) and the trip was around 500 km in total, with the rig being fully loaded with 6 persons, camping gear and what-not. At times, especially at lower speed, the temp.gauge would rise to the mark just before 210, but never go past it. I´m not sure whether this is normal or not but what I did notice was the fan clutch staying on way longer than it used to when we first took off (cold engine), and didn’t seem to engage when the temperature was rising. When we got back home, I replaced the original (at least I think so) clutch which showed signs of oil leak with a new one from my local dealer (US Motor Works, P/N: 22158). I am not sure if this was a good call from my side as this new fan clutch seem to have a life of its own, sometimes staying engaged forever and sometimes releasing right after take-off. To ensure a good, functioning cooling fan, which products should I buy? Hayden clutch? Replace the 5-blade metal fan with an 11-blade one? Which one in that case? The van is equipped with dual A/C.
At the end of last summer, during a longer run when me and my buddy were on our way on our annual fishing-trip, the engine started stumble a bit. A few miles down the road I had to stop and turn the engine off due to a road construction. When trying to start it again after a few minutes, it would crank but not start. We pushed it aside and the cheap scan-tool I had with me showed an intermittent code P0337. Since we were in the middle of nowhere, we just took the CKP sensor out, wiped it off and put it back. The engine started and showed no signs of this same behaviour until a couple of days later during the trip home. Now it really started to stumble, like running on 4 cylinders, but didn’t “die out” completely. Having the scanner already hooked up, it showed another intermittent code: P0341. Eventually the “cough” went away and I was able to get home without calling for a tow truck. Both the codes “disappeared” by themselves and have not returned since then. I have only driven the rig shorter distances since then, but no problem has re-appeared. From what I´ve read, the CKP is a fairly common problem. Would you say that replacing it and perhaps also the CMP is the way to go or is it possible that the error is somewhere else? It is also worth mentioning that the van usually cranks a lot longer before firing up when the engine is “half-way” warm to warm.
Someone (not me in this case) has stripped the threads in the oil pan sometime in the past. The plug can be tightened so it doesn’t leak but it feels like something I want to address. If one were to go down the route of a self-tapping oil plug, do you have any recommendations? If not, is replacing the oil pan a big job on these trucks? Would you recommend replacing something more “while in there” except for the pan and gasket?
I realize now that I´ve written way more than I first intended, sorry about that. Thanks in advance anyway!
Best regards
So, I´ve come across some new issues with the van (1997 Savana, Vortec 5.7) and I thought that maybe you guys could help me out. Again, I apologize if for any misspelling or incorrect choice of words as English isn´t my first language. Anyway, I would appreciate any help or suggestions.
On our way home from our family vacation, I noticed that the van started to run a bit hotter than it previously had done. This was a warm day (at least for being in Sweden) and the trip was around 500 km in total, with the rig being fully loaded with 6 persons, camping gear and what-not. At times, especially at lower speed, the temp.gauge would rise to the mark just before 210, but never go past it. I´m not sure whether this is normal or not but what I did notice was the fan clutch staying on way longer than it used to when we first took off (cold engine), and didn’t seem to engage when the temperature was rising. When we got back home, I replaced the original (at least I think so) clutch which showed signs of oil leak with a new one from my local dealer (US Motor Works, P/N: 22158). I am not sure if this was a good call from my side as this new fan clutch seem to have a life of its own, sometimes staying engaged forever and sometimes releasing right after take-off. To ensure a good, functioning cooling fan, which products should I buy? Hayden clutch? Replace the 5-blade metal fan with an 11-blade one? Which one in that case? The van is equipped with dual A/C.
At the end of last summer, during a longer run when me and my buddy were on our way on our annual fishing-trip, the engine started stumble a bit. A few miles down the road I had to stop and turn the engine off due to a road construction. When trying to start it again after a few minutes, it would crank but not start. We pushed it aside and the cheap scan-tool I had with me showed an intermittent code P0337. Since we were in the middle of nowhere, we just took the CKP sensor out, wiped it off and put it back. The engine started and showed no signs of this same behaviour until a couple of days later during the trip home. Now it really started to stumble, like running on 4 cylinders, but didn’t “die out” completely. Having the scanner already hooked up, it showed another intermittent code: P0341. Eventually the “cough” went away and I was able to get home without calling for a tow truck. Both the codes “disappeared” by themselves and have not returned since then. I have only driven the rig shorter distances since then, but no problem has re-appeared. From what I´ve read, the CKP is a fairly common problem. Would you say that replacing it and perhaps also the CMP is the way to go or is it possible that the error is somewhere else? It is also worth mentioning that the van usually cranks a lot longer before firing up when the engine is “half-way” warm to warm.
Someone (not me in this case) has stripped the threads in the oil pan sometime in the past. The plug can be tightened so it doesn’t leak but it feels like something I want to address. If one were to go down the route of a self-tapping oil plug, do you have any recommendations? If not, is replacing the oil pan a big job on these trucks? Would you recommend replacing something more “while in there” except for the pan and gasket?
I realize now that I´ve written way more than I first intended, sorry about that. Thanks in advance anyway!
Best regards