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Engine Discussions
HT4100 4.1, 4.5, 4.9
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B
Im Having Problems With My 86 Cadillac
brandonbyrd
May 7, 2006
22
4K
Mar 8, 2007
by
Pckstude
C
4.5 Allante intake on 93 4.9 deville
caddeville
Mar 7, 2007
1
998
Mar 7, 2007
by
Edahall
9
New Trouble Code
92EldoTC
Mar 6, 2007
0
758
Mar 6, 2007
by
92EldoTC
Z
Bypass Catalytic Converter on 1993 Deville?
zentrade
Dec 31, 2006
22
12K
Mar 6, 2007
by
ewill3rd
J
1990 Seville Timing chain?
Jenns90seville
Feb 26, 2007
2
863
Mar 5, 2007
by
HUF
C
1989 Caddy Deville......help!!!
cadi197
Feb 28, 2007
6
2K
Mar 4, 2007
by
noahsdad
S
4.5 TBI rough idle
SlxAlxx
Feb 28, 2007
2
1K
Mar 4, 2007
by
HUF
C
Code and Coolant Prob.
CTrink
Mar 3, 2007
2
1K
Mar 3, 2007
by
HUF
D
E012,E053 Won't run
DodgeW200
Feb 27, 2007
3
1K
Mar 1, 2007
by
gschott
J
gas pedal
jetengine
Feb 28, 2007
1
746
Feb 28, 2007
by
86cadman
A
Speedometer Sensor issue ?
aliter
Feb 24, 2007
2
806
Feb 28, 2007
by
aliter
Favorite things about the 4.9?
I~LUV~Caddys8792
Feb 17, 2007
31
5K
Feb 27, 2007
by
92EldoTC
B
Fixed EGR now MPG is lower
behind-bars
Feb 19, 2007
5
3K
Feb 27, 2007
by
behind-bars
W
84 eldo conv't - 70 weight oil - yes or no?
waltereldo
Feb 27, 2007
0
685
Feb 27, 2007
by
waltereldo
D
MAP Problems
Disturbed_One
Feb 7, 2007
8
1K
Feb 26, 2007
by
Disturbed_One
S
Help I dont want to get rid of my car BUT!
smithsmith
Dec 14, 2006
16
3K
Feb 26, 2007
by
donwon
S
HT-4500 Starting trouble
SlxAlxx
Feb 25, 2007
1
985
Feb 26, 2007
by
caddydaddy
V
'84 Eldo Code 44
vlrench
Feb 25, 2007
2
792
Feb 26, 2007
by
vlrench
S
4.5 TBI smoking
SlxAlxx
Feb 15, 2007
3
926
Feb 24, 2007
by
codewize
8
86 EGR Valve
86cadman
Feb 16, 2007
14
4K
Feb 24, 2007
by
noahsdad
9
Sticky Gas Pedal...4.5L
90Devillex32
Feb 22, 2007
2
787
Feb 23, 2007
by
90Devillex32
S
Underhood smoking... need help with a diagnosis
SlxAlxx
Feb 20, 2007
3
751
Feb 22, 2007
by
awadecki
R
engin and trany swap for an 85 coupe deville
reynolds_cadi
Feb 17, 2007
3
987
Feb 20, 2007
by
reynolds_cadi
S
4.5L TBI Grumbling
SlxAlxx
Feb 10, 2007
5
2K
Feb 20, 2007
by
HUF
1
How to start when very cold (less than 0 F)
100
Feb 6, 2007
11
1K
Feb 20, 2007
by
MachX
how to get more hp from a 4100
Stealth
Feb 9, 2007
6
3K
Feb 19, 2007
by
DaveSmed
O
Fuel pump on 4.9 92 Deville
Occitiger
Feb 13, 2007
4
9K
Feb 17, 2007
by
thu
F
Stop Engine, Low Oil Pressure
fifty9singlecab
Feb 3, 2007
4
2K
Feb 16, 2007
by
fifty9singlecab
B
4.1 Knock?? Or Tap??
bobbarker
Feb 12, 2007
8
1K
Feb 15, 2007
by
noahsdad
R
4.1L injector
ratsass52
Feb 9, 2007
6
1K
Feb 13, 2007
by
leftoverture
S
HT4500 and 4900 series Performance
SlxAlxx
Feb 9, 2007
8
6K
Feb 11, 2007
by
Disturbed_One
Z
Oil Level
zentrade
Feb 6, 2007
4
727
Feb 8, 2007
by
zentrade
F
Need Help Please
fifty9singlecab
Feb 4, 2007
10
941
Feb 8, 2007
by
NickySantoro
S
Engine surges at slow speed
ScottN3N
Feb 3, 2007
2
1K
Feb 8, 2007
by
drewsdeville
A
4.5 differences
Astraks1001
Nov 26, 2006
6
1K
Feb 7, 2007
by
Stealth
1
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HT4100 4.1, 4.5, 4.9
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