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View Full Version : Intermittent power loss on long uphill runs


pdolan
10-20-2014, 03:15 AM
I have a 2004 140" passenger van with 90,000 miles. In the last 2 months on long (10 mile ) uphill grades under constant load I'll loose maybe 5%-10% of my power about every 15- 25 seconds, for maybe 3-5 seconds, and then get it back. While this is happening I have constant pressure on accelerator. My fuel millage is 22-23 mph. Thanks for any feedback.

Pete

tsspry
10-20-2014, 10:23 PM
I had this problem until I replaced a leaking turbo resonator. I eliminated the resonator, and gained what seemed to be 15% more pickup. google turbo resonator eliminator, or go to www.riordanco.com/our_products_catalog.htm

pdolan
10-21-2014, 12:05 AM
Thanks for your reply. Have ordered the part.

david_42
10-21-2014, 04:43 PM
The turbo resonator can be a problem on T1Ns; it's very common in Sprinter-based RVs for them to fail. It tends to crack along the mold seam.

EZoilburner
10-22-2014, 02:28 AM
Is it on all gears? It looks like You don't have that many miles on Yours but see if it does it under load on all gears too.

chop20041
10-23-2014, 02:14 PM
I have a 2004 140" passenger van with 90,000 miles. In the last 2 months on long (10 mile ) uphill grades under constant load I'll loose maybe 5%-10% of my power about every 15- 25 seconds, for maybe 3-5 seconds, and then get it back. While this is happening I have constant pressure on accelerator. My fuel millage is 22-23 mph. Thanks for any feedback.

Pete

My symptoms were exactly as you described, failed stock resonator was the culprit. Went with the Dorman unit, no issues 40,000 mi later