Jarlaxle
New England
Senior Member
Joined: 11/18/2006
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Probably not, with EFI.
John and Elizabeth (Liz), with Briza the size XL tabby
St. Bernard Marm, cats Vierna and Maya...RIP. ">
Current rig:
1992 International Genesis school bus conversion
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2 many 2
USA
Senior Member
Joined: 06/25/2015
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Any Up-Dates?
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udidwht
Seattle
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Joined: 08/11/2014
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For TBI troubleshooting...
https://harristuning.com/Tbi/troubleshooting/
94-95 TBI years were 26-32psi fuel pressure. You also need to be sure you're running the correct flow rated injectors for your year engine. Only use AC Delco parts. Do not cheap out.
Even a bad TPS can cause the issue you're having.
You mention 220 - 280 temps?
The dash gauge even have 280? Or is it 260? It is normal behavior to see these era RVs go as high as ~240 on long grade pulls. What is important is to be certain you hear the clutch fan kicking in. That is what prevents the temp from boiling over. A normal operating range on the flats is generally 205 - 217 or so. Your dash gauge will rarely reflect that accurately. Usually read higher by as much as 10-2X degrees depending on ambient temp.
Water also cools better than coolant so get the ratio at min 50/50 (distilled water). Pre-mix is already mixed with distilled water. With 454s I like 60 percent water vs 40 percent coolant.
Those year coaches run with a 195 T-stat. Do not use one less than that. It will throw off the PCM. I'd also pull the distributor and replace the pick-up coil and visually inspect the stator ring. The ring is known to crack messing with timing.
* This post was
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edited 03/28/22 12:21am by udidwht *
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1994 Fleetwood Southwind Storm
P-30 chassis 7.4L 454 TBI 58,301 miles and counting....(as of 06/08/19)
VIN# 1GBJP37N4R3314754
Flight System Generator man 360 (PM me)
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