Ah yes. I didn't think to recognize whether the rpms were flaring when the hesitation occurred, and whether it lurched forward when the hesitation stopped. I bet it is fuel related. I do have new filters for the thing.
So with a filter change: If the primer pump is operating properly, does one simply button back up the fuel system and then pump that thing until air isn't noticeable escaping anymore from the pump? I've not done it before. Or had they done away with the primer pump on this model (87 190D), and you just crank the starter 'til it self-purges? (yes, I spend as little time under the hood as I can get away with) Brian On Tue, Apr 8, 2008 at 7:23 AM, <[EMAIL PROTECTED]> wrote: > I would definitely consider this a fuel problem, either water in the fuel, > or dirty filters.??A dirty?cannister filter can restrict total fuel flow in > a way that limits engine power, and this would be most obvious while > climbing a hill.? Change both filters and consider cleaning the fuel tank > suction strainer. > > > A remote possibility is a clogged vent line on the fuel tank.? Driving the > car up the same hill with tank cap removed would be a good test for that. > > Jim in Phoenix > > > -----Original Message----- > From: Zoltan Finks <[EMAIL PROTECTED]> > To: Mercedes Discussion List <mercedes@okiebenz.com> > Sent: Tue, 8 Apr 2008 3:02 am > Subject: [MBZ] Hesitation Causes in 190D > > > > It's not too bad, but going up the hill near our house with a relatively > cold 87 190D NA, I shifted down to 2 (the thing will not shift down > itself) > and felt some light hesitation that came and went as we climbed the hill. > Wonder if this is more likely to be engine or tranny? I'm still too new to > the klatta klub to know if a diesel can act this way. > > As for the tranny: Recently, I checked the fluid and found it barely on > the > stick. Due to how difficult it is to get a reading on the stick, and > thinking its being probably a quart and a half low would allow me to > gingerly drive it to the store, I tried to climb our steep but short hill > leading out of our home. I felt significant loss of power in a sort of > on-and-off fashion. Cringing, I surmised this to be tranny slipping. I > shifted to neutral and coasted back down the hill into my garage. > > So, can low tranny fluid cause this sort of "slipping"? > > By the way, the tranny leaks at a fairly significant pace - hence its > low-ness. > > Brian > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
