Splinter Posted January 26, 2008 Share Posted January 26, 2008 I am trying to eliminate a hesitation problem that I have only when I am doing 85-95 kph. It doesn't do it under load like a bad wire, it only does it while I am cruising down the road. Is the TPS a throw away or can I take it apart and clean it? Thanks Chris Link to comment Share on other sites More sharing options...
88pathoffroad Posted January 26, 2008 Share Posted January 26, 2008 It's a sealed unit AFAIK. Link to comment Share on other sites More sharing options...
GhostPath Posted January 26, 2008 Share Posted January 26, 2008 The TPS is testable, but it isn't servicable in any sense. Service is by replacement only. Link to comment Share on other sites More sharing options...
Splinter Posted January 26, 2008 Author Share Posted January 26, 2008 Thanks guys. Now second question..... when you say that it's testable does that mean that I can test it for a bad spot in it's range of motion? Or is it just testable to see if it works? Thanks Link to comment Share on other sites More sharing options...
GhostPath Posted January 26, 2008 Share Posted January 26, 2008 (edited) Thanks guys.Now second question..... when you say that it's testable does that mean that I can test it for a bad spot in it's range of motion? Or is it just testable to see if it works? Thanks You can test it for a bad spot in the range of motion... BUT. Sometimes a bad one will test good because you didn't hit *just* the right spot while testing. The TPS is considered to be a consumable/wear part anyway. Eventually they wear out; 13 years is a decent run for one. I'd just replace it. Dealership wants less than $100 for it. Alternately, you could get the TPS (used) from a lower-mileage truck that died from unrelated reasons - all the WD21 MPFI V6 trucks use the same TPS. Correction: All automatic trucks use the same TPS, all manual trucks use the same TPS. You cannot use a manual TPS on an automatic truck. Edited January 26, 2008 by GhostPath Link to comment Share on other sites More sharing options...
Splinter Posted January 26, 2008 Author Share Posted January 26, 2008 You can test it for a bad spot in the range of motion... BUT. Sometimes a bad one will test good because you didn't hit *just* the right spot while testing. The TPS is considered to be a consumable/wear part anyway. Eventually they wear out; 13 years is a nice long run for one. Thanks GhostPath. I appreciate the info. When I test it am I using my OHM meter to test for resistance? Do you think that a bad TPS would cause the Pathy to hesitate while I am keeping a constant speed? It doesn't do it when I am accelerating, just at one speed. Link to comment Share on other sites More sharing options...
GhostPath Posted January 26, 2008 Share Posted January 26, 2008 I edited my response, reread my prior post for more info. Yes, you test it for resistance/continuity. A bad TPS or bad TPS wiring could cause what you describe. Link to comment Share on other sites More sharing options...
Splinter Posted January 26, 2008 Author Share Posted January 26, 2008 Do I test it across the pins for the connector or do I ground to the body of it and use one of the pins? Link to comment Share on other sites More sharing options...
GhostPath Posted January 26, 2008 Share Posted January 26, 2008 I don't have the manual here in front of me, but I believe that it's across the pins. Link to comment Share on other sites More sharing options...
Splinter Posted January 26, 2008 Author Share Posted January 26, 2008 Thanks again man. I'll keep you posted. Chris Link to comment Share on other sites More sharing options...
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