Out of nowhere now I have turbo surge? - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 12-15-2010, 04:14 PM Thread Starter
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Out of nowhere now I have turbo surge?

So how is this possible? Can boot leaks cause turbo surge?
I have a superchips tuner and while romping on it getting on the freeway the other day with the wife in the truck... It makes a loud 'chee...chee...cheee...' sound while its building boost, complete with waggling boost gauge needle. I have never had it that bad before - the only noise I get it a 'psstchhh' when I let off the skinny petal ever since I did the BHAF mod and never noticed a jumping needle.

What can cause this 'all of a sudden'? I can drive so it doesn't happen, but I was spoolin' up to pass someone today on a two lane road and it did it, when I really didn't expect it to.

What do you think ?

Scott

2000 XLT F-250 7.3 Crew Cab Auto w/Transgo shift kit
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post #2 of 4 Old 12-15-2010, 07:21 PM
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Could be the cold weather and the EBPV being closed a little....

I put in a ported housing because I couldnt tow without it surging, now I can hold
it to the floor towing with no problem (well maybe high EGT and boost...)

'00 F350 Supercrewzer Lariet, PSD, Auto, 3.73, CC, 4x4, SWB, SRW, 6-pos Chip, 6637 filter, 4-inch turbo back exhaust, Garrett 38r w/ high flow outlet, ITP overboost eliminator, AIH delete, Adrenaline HPOP, BTS Trans, Swamps IDM, In-tank & Pre-Pump mod, Heater Valve mod, X-car Sound Pannel mod, Train Horns / Packages: Trailer Tow, Camper, Off-Road. Overhead monitor DVD/TV/VCR (VCR under rear seat w/ 6 CD changer)

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post #3 of 4 Old 12-16-2010, 03:44 PM Thread Starter
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Good thoughts, I didn't consider the EBPV. Hmmm...
Well I did reflash the truck with a lesser tune (tow perf) and it stopped doing it. I put it back to the mileage XS tune and it does it way less... but I can still 'get it to do it' if I try.

thanks -
I guess I will monitor for a bit... strange!!

Scott

2000 XLT F-250 7.3 Crew Cab Auto w/Transgo shift kit
Zoodad
4" MBRP turbo back exhaust w/muffler
PHP TS chip - 65 tow/80DD/120 race
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post #4 of 4 Old 12-16-2010, 09:46 PM
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I agree with the colder temps thought. Remember that colder air is also more dense so that could cause it too.

03 F-250 7.3L, Sport, 4x4, Auto

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